81908520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{503}}^1$

素因数の和:599

約数の個数: 128

約数和(自身を含む): 261273600

約数和(自身を除く): 179365080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 59, 60, 69, 92, 115, 118, 120, 138, 177, 184, 230, 236, 276, 295, 345, 354, 460, 472, 503, 552, 590, 690, 708, 885, 920, 1006, 1180, 1357, 1380, 1416, 1509, 1770, 2012, 2360, 2515, 2714, 2760, 3018, 3540, 4024, 4071, 5030, 5428, 6036, 6785, 7080, 7545, 8142, 10060, 10856, 11569, 12072, 13570, 15090, 16284, 20120, 20355, 23138, 27140, 29677, 30180, 32568, 34707, 40710, 46276, 54280, 57845, 59354, 60360, 69414, 81420, 89031, 92552, 115690, 118708, 138828, 148385, 162840, 173535, 178062, 231380, 237416, 277656, 296770, 347070, 356124, 445155, 462760, 593540, 682571, 694140, 712248, 890310, 1187080, 1365142, 1388280, 1780620, 2047713, 2730284, 3412855, 3561240, 4095426, 5460568, 6825710, 8190852, 10238565, 13651420, 16381704, 20477130, 27302840, 40954260, 81908520]

約数ペア:

[(1, 81908520), (2, 40954260), (3, 27302840), (4, 20477130), (5, 16381704), (6, 13651420), (8, 10238565), (10, 8190852), (12, 6825710), (15, 5460568), (20, 4095426), (23, 3561240), (24, 3412855), (30, 2730284), (40, 2047713), (46, 1780620), (59, 1388280), (60, 1365142), (69, 1187080), (92, 890310), (115, 712248), (118, 694140), (120, 682571), (138, 593540), (177, 462760), (184, 445155), (230, 356124), (236, 347070), (276, 296770), (295, 277656), (345, 237416), (354, 231380), (460, 178062), (472, 173535), (503, 162840), (552, 148385), (590, 138828), (690, 118708), (708, 115690), (885, 92552), (920, 89031), (1006, 81420), (1180, 69414), (1357, 60360), (1380, 59354), (1416, 57845), (1509, 54280), (1770, 46276), (2012, 40710), (2360, 34707), (2515, 32568), (2714, 30180), (2760, 29677), (3018, 27140), (3540, 23138), (4024, 20355), (4071, 20120), (5030, 16284), (5428, 15090), (6036, 13570), (6785, 12072), (7080, 11569), (7545, 10856), (8142, 10060)]