128385840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{4421}}^1$

素因数の和:4459

約数の個数: 120

約数和(自身を含む): 437565744

約数和(自身を除く): 309179904

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 121, 132, 165, 176, 220, 240, 242, 264, 330, 363, 440, 484, 528, 605, 660, 726, 880, 968, 1210, 1320, 1452, 1815, 1936, 2420, 2640, 2904, 3630, 4421, 4840, 5808, 7260, 8842, 9680, 13263, 14520, 17684, 22105, 26526, 29040, 35368, 44210, 48631, 53052, 66315, 70736, 88420, 97262, 106104, 132630, 145893, 176840, 194524, 212208, 243155, 265260, 291786, 353680, 389048, 486310, 530520, 534941, 583572, 729465, 778096, 972620, 1061040, 1069882, 1167144, 1458930, 1604823, 1945240, 2139764, 2334288, 2674705, 2917860, 3209646, 3890480, 4279528, 5349410, 5835720, 6419292, 8024115, 8559056, 10698820, 11671440, 12838584, 16048230, 21397640, 25677168, 32096460, 42795280, 64192920, 128385840]

約数ペア:

[(1, 128385840), (2, 64192920), (3, 42795280), (4, 32096460), (5, 25677168), (6, 21397640), (8, 16048230), (10, 12838584), (11, 11671440), (12, 10698820), (15, 8559056), (16, 8024115), (20, 6419292), (22, 5835720), (24, 5349410), (30, 4279528), (33, 3890480), (40, 3209646), (44, 2917860), (48, 2674705), (55, 2334288), (60, 2139764), (66, 1945240), (80, 1604823), (88, 1458930), (110, 1167144), (120, 1069882), (121, 1061040), (132, 972620), (165, 778096), (176, 729465), (220, 583572), (240, 534941), (242, 530520), (264, 486310), (330, 389048), (363, 353680), (440, 291786), (484, 265260), (528, 243155), (605, 212208), (660, 194524), (726, 176840), (880, 145893), (968, 132630), (1210, 106104), (1320, 97262), (1452, 88420), (1815, 70736), (1936, 66315), (2420, 53052), (2640, 48631), (2904, 44210), (3630, 35368), (4421, 29040), (4840, 26526), (5808, 22105), (7260, 17684), (8842, 14520), (9680, 13263)]