398345040

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{661}}^1$

素因数の和:720

約数の個数: 240

約数和(自身を含む): 1434241536

約数和(自身を除く): 1035896496

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 31, 36, 40, 45, 48, 54, 60, 62, 72, 80, 81, 90, 93, 108, 120, 124, 135, 144, 155, 162, 180, 186, 216, 240, 243, 248, 270, 279, 310, 324, 360, 372, 405, 432, 465, 486, 496, 540, 558, 620, 648, 661, 720, 744, 810, 837, 930, 972, 1080, 1116, 1215, 1240, 1296, 1322, 1395, 1488, 1620, 1674, 1860, 1944, 1983, 2160, 2232, 2430, 2480, 2511, 2644, 2790, 3240, 3305, 3348, 3720, 3888, 3966, 4185, 4464, 4860, 5022, 5288, 5580, 5949, 6480, 6610, 6696, 7440, 7533, 7932, 8370, 9720, 9915, 10044, 10576, 11160, 11898, 12555, 13220, 13392, 15066, 15864, 16740, 17847, 19440, 19830, 20088, 20491, 22320, 23796, 25110, 26440, 29745, 30132, 31728, 33480, 35694, 37665, 39660, 40176, 40982, 47592, 50220, 52880, 53541, 59490, 60264, 61473, 66960, 71388, 75330, 79320, 81964, 89235, 95184, 100440, 102455, 107082, 118980, 120528, 122946, 142776, 150660, 158640, 160623, 163928, 178470, 184419, 200880, 204910, 214164, 237960, 245892, 267705, 285552, 301320, 307365, 321246, 327856, 356940, 368838, 409820, 428328, 475920, 491784, 535410, 553257, 602640, 614730, 642492, 713880, 737676, 803115, 819640, 856656, 922095, 983568, 1070820, 1106514, 1229460, 1284984, 1427760, 1475352, 1606230, 1639280, 1659771, 1844190, 2141640, 2213028, 2458920, 2569968, 2766285, 2950704, 3212460, 3319542, 3688380, 4283280, 4426056, 4917840, 4979313, 5532570, 6424920, 6639084, 7376760, 8298855, 8852112, 9958626, 11065140, 12849840, 13278168, 14753520, 16597710, 19917252, 22130280, 24896565, 26556336, 33195420, 39834504, 44260560, 49793130, 66390840, 79669008, 99586260, 132781680, 199172520, 398345040]

約数ペア:

[(1, 398345040), (2, 199172520), (3, 132781680), (4, 99586260), (5, 79669008), (6, 66390840), (8, 49793130), (9, 44260560), (10, 39834504), (12, 33195420), (15, 26556336), (16, 24896565), (18, 22130280), (20, 19917252), (24, 16597710), (27, 14753520), (30, 13278168), (31, 12849840), (36, 11065140), (40, 9958626), (45, 8852112), (48, 8298855), (54, 7376760), (60, 6639084), (62, 6424920), (72, 5532570), (80, 4979313), (81, 4917840), (90, 4426056), (93, 4283280), (108, 3688380), (120, 3319542), (124, 3212460), (135, 2950704), (144, 2766285), (155, 2569968), (162, 2458920), (180, 2213028), (186, 2141640), (216, 1844190), (240, 1659771), (243, 1639280), (248, 1606230), (270, 1475352), (279, 1427760), (310, 1284984), (324, 1229460), (360, 1106514), (372, 1070820), (405, 983568), (432, 922095), (465, 856656), (486, 819640), (496, 803115), (540, 737676), (558, 713880), (620, 642492), (648, 614730), (661, 602640), (720, 553257), (744, 535410), (810, 491784), (837, 475920), (930, 428328), (972, 409820), (1080, 368838), (1116, 356940), (1215, 327856), (1240, 321246), (1296, 307365), (1322, 301320), (1395, 285552), (1488, 267705), (1620, 245892), (1674, 237960), (1860, 214164), (1944, 204910), (1983, 200880), (2160, 184419), (2232, 178470), (2430, 163928), (2480, 160623), (2511, 158640), (2644, 150660), (2790, 142776), (3240, 122946), (3305, 120528), (3348, 118980), (3720, 107082), (3888, 102455), (3966, 100440), (4185, 95184), (4464, 89235), (4860, 81964), (5022, 79320), (5288, 75330), (5580, 71388), (5949, 66960), (6480, 61473), (6610, 60264), (6696, 59490), (7440, 53541), (7533, 52880), (7932, 50220), (8370, 47592), (9720, 40982), (9915, 40176), (10044, 39660), (10576, 37665), (11160, 35694), (11898, 33480), (12555, 31728), (13220, 30132), (13392, 29745), (15066, 26440), (15864, 25110), (16740, 23796), (17847, 22320), (19440, 20491), (19830, 20088)]