642991920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^2\times {\mathrm{103}}^1$

素因数の和:212

約数の個数: 240

約数和(自身を含む): 2177360640

約数和(自身を除く): 1534368720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 37, 38, 40, 48, 57, 60, 74, 76, 80, 95, 103, 111, 114, 120, 148, 152, 185, 190, 206, 222, 228, 240, 285, 296, 304, 309, 370, 380, 412, 444, 456, 515, 555, 570, 592, 618, 703, 740, 760, 824, 888, 912, 1030, 1110, 1140, 1236, 1369, 1406, 1480, 1520, 1545, 1648, 1776, 1957, 2060, 2109, 2220, 2280, 2472, 2738, 2812, 2960, 3090, 3515, 3811, 3914, 4107, 4120, 4218, 4440, 4560, 4944, 5476, 5624, 5871, 6180, 6845, 7030, 7622, 7828, 8214, 8240, 8436, 8880, 9785, 10545, 10952, 11248, 11433, 11742, 12360, 13690, 14060, 15244, 15656, 16428, 16872, 19055, 19570, 20535, 21090, 21904, 22866, 23484, 24720, 26011, 27380, 28120, 29355, 30488, 31312, 32856, 33744, 38110, 39140, 41070, 42180, 45732, 46968, 52022, 54760, 56240, 57165, 58710, 60976, 65712, 72409, 76220, 78033, 78280, 82140, 84360, 91464, 93936, 104044, 109520, 114330, 117420, 130055, 141007, 144818, 152440, 156066, 156560, 164280, 168720, 182928, 208088, 217227, 228660, 234840, 260110, 282014, 289636, 304880, 312132, 328560, 362045, 390165, 416176, 423021, 434454, 457320, 469680, 520220, 564028, 579272, 624264, 705035, 724090, 780330, 846042, 868908, 914640, 1040440, 1086135, 1128056, 1158544, 1248528, 1410070, 1448180, 1560660, 1692084, 1737816, 2080880, 2115105, 2172270, 2256112, 2679133, 2820140, 2896360, 3121320, 3384168, 3475632, 4230210, 4344540, 5358266, 5640280, 5792720, 6242640, 6768336, 8037399, 8460420, 8689080, 10716532, 11280560, 13395665, 16074798, 16920840, 17378160, 21433064, 26791330, 32149596, 33841680, 40186995, 42866128, 53582660, 64299192, 80373990, 107165320, 128598384, 160747980, 214330640, 321495960, 642991920]

約数ペア:

[(1, 642991920), (2, 321495960), (3, 214330640), (4, 160747980), (5, 128598384), (6, 107165320), (8, 80373990), (10, 64299192), (12, 53582660), (15, 42866128), (16, 40186995), (19, 33841680), (20, 32149596), (24, 26791330), (30, 21433064), (37, 17378160), (38, 16920840), (40, 16074798), (48, 13395665), (57, 11280560), (60, 10716532), (74, 8689080), (76, 8460420), (80, 8037399), (95, 6768336), (103, 6242640), (111, 5792720), (114, 5640280), (120, 5358266), (148, 4344540), (152, 4230210), (185, 3475632), (190, 3384168), (206, 3121320), (222, 2896360), (228, 2820140), (240, 2679133), (285, 2256112), (296, 2172270), (304, 2115105), (309, 2080880), (370, 1737816), (380, 1692084), (412, 1560660), (444, 1448180), (456, 1410070), (515, 1248528), (555, 1158544), (570, 1128056), (592, 1086135), (618, 1040440), (703, 914640), (740, 868908), (760, 846042), (824, 780330), (888, 724090), (912, 705035), (1030, 624264), (1110, 579272), (1140, 564028), (1236, 520220), (1369, 469680), (1406, 457320), (1480, 434454), (1520, 423021), (1545, 416176), (1648, 390165), (1776, 362045), (1957, 328560), (2060, 312132), (2109, 304880), (2220, 289636), (2280, 282014), (2472, 260110), (2738, 234840), (2812, 228660), (2960, 217227), (3090, 208088), (3515, 182928), (3811, 168720), (3914, 164280), (4107, 156560), (4120, 156066), (4218, 152440), (4440, 144818), (4560, 141007), (4944, 130055), (5476, 117420), (5624, 114330), (5871, 109520), (6180, 104044), (6845, 93936), (7030, 91464), (7622, 84360), (7828, 82140), (8214, 78280), (8240, 78033), (8436, 76220), (8880, 72409), (9785, 65712), (10545, 60976), (10952, 58710), (11248, 57165), (11433, 56240), (11742, 54760), (12360, 52022), (13690, 46968), (14060, 45732), (15244, 42180), (15656, 41070), (16428, 39140), (16872, 38110), (19055, 33744), (19570, 32856), (20535, 31312), (21090, 30488), (21904, 29355), (22866, 28120), (23484, 27380), (24720, 26011)]