81865280

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{227}}^1$

素因数の和:281

約数の個数: 168

約数和(自身を含む): 237670848

約数和(自身を除く): 155805568

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 49, 56, 64, 70, 80, 92, 98, 112, 115, 140, 160, 161, 184, 196, 224, 227, 230, 245, 280, 320, 322, 368, 392, 448, 454, 460, 490, 560, 644, 736, 784, 805, 908, 920, 980, 1120, 1127, 1135, 1288, 1472, 1568, 1589, 1610, 1816, 1840, 1960, 2240, 2254, 2270, 2576, 3136, 3178, 3220, 3632, 3680, 3920, 4508, 4540, 5152, 5221, 5635, 6356, 6440, 7264, 7360, 7840, 7945, 9016, 9080, 10304, 10442, 11123, 11270, 12712, 12880, 14528, 15680, 15890, 18032, 18160, 20884, 22246, 22540, 25424, 25760, 26105, 31780, 36064, 36320, 36547, 41768, 44492, 45080, 50848, 51520, 52210, 55615, 63560, 72128, 72640, 73094, 83536, 88984, 90160, 101696, 104420, 111230, 127120, 146188, 167072, 177968, 180320, 182735, 208840, 222460, 254240, 255829, 292376, 334144, 355936, 360640, 365470, 417680, 444920, 508480, 511658, 584752, 711872, 730940, 835360, 889840, 1023316, 1169504, 1279145, 1461880, 1670720, 1779680, 2046632, 2339008, 2558290, 2923760, 3559360, 4093264, 5116580, 5847520, 8186528, 10233160, 11695040, 16373056, 20466320, 40932640, 81865280]

約数ペア:

[(1, 81865280), (2, 40932640), (4, 20466320), (5, 16373056), (7, 11695040), (8, 10233160), (10, 8186528), (14, 5847520), (16, 5116580), (20, 4093264), (23, 3559360), (28, 2923760), (32, 2558290), (35, 2339008), (40, 2046632), (46, 1779680), (49, 1670720), (56, 1461880), (64, 1279145), (70, 1169504), (80, 1023316), (92, 889840), (98, 835360), (112, 730940), (115, 711872), (140, 584752), (160, 511658), (161, 508480), (184, 444920), (196, 417680), (224, 365470), (227, 360640), (230, 355936), (245, 334144), (280, 292376), (320, 255829), (322, 254240), (368, 222460), (392, 208840), (448, 182735), (454, 180320), (460, 177968), (490, 167072), (560, 146188), (644, 127120), (736, 111230), (784, 104420), (805, 101696), (908, 90160), (920, 88984), (980, 83536), (1120, 73094), (1127, 72640), (1135, 72128), (1288, 63560), (1472, 55615), (1568, 52210), (1589, 51520), (1610, 50848), (1816, 45080), (1840, 44492), (1960, 41768), (2240, 36547), (2254, 36320), (2270, 36064), (2576, 31780), (3136, 26105), (3178, 25760), (3220, 25424), (3632, 22540), (3680, 22246), (3920, 20884), (4508, 18160), (4540, 18032), (5152, 15890), (5221, 15680), (5635, 14528), (6356, 12880), (6440, 12712), (7264, 11270), (7360, 11123), (7840, 10442), (7945, 10304), (9016, 9080)]