21575380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:169

約数の個数: 96

約数和(自身を含む): 52254720

約数和(自身を除く): 30679340

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 31, 34, 46, 62, 68, 85, 89, 92, 115, 124, 155, 170, 178, 230, 310, 340, 356, 391, 445, 460, 527, 620, 713, 782, 890, 1054, 1426, 1513, 1564, 1780, 1955, 2047, 2108, 2635, 2759, 2852, 3026, 3565, 3910, 4094, 5270, 5518, 6052, 7130, 7565, 7820, 8188, 10235, 10540, 11036, 12121, 13795, 14260, 15130, 20470, 24242, 27590, 30260, 34799, 40940, 46903, 48484, 55180, 60605, 63457, 69598, 93806, 121210, 126914, 139196, 173995, 187612, 234515, 242420, 253828, 317285, 347990, 469030, 634570, 695980, 938060, 1078769, 1269140, 2157538, 4315076, 5393845, 10787690, 21575380]

約数ペア:

[(1, 21575380), (2, 10787690), (4, 5393845), (5, 4315076), (10, 2157538), (17, 1269140), (20, 1078769), (23, 938060), (31, 695980), (34, 634570), (46, 469030), (62, 347990), (68, 317285), (85, 253828), (89, 242420), (92, 234515), (115, 187612), (124, 173995), (155, 139196), (170, 126914), (178, 121210), (230, 93806), (310, 69598), (340, 63457), (356, 60605), (391, 55180), (445, 48484), (460, 46903), (527, 40940), (620, 34799), (713, 30260), (782, 27590), (890, 24242), (1054, 20470), (1426, 15130), (1513, 14260), (1564, 13795), (1780, 12121), (1955, 11036), (2047, 10540), (2108, 10235), (2635, 8188), (2759, 7820), (2852, 7565), (3026, 7130), (3565, 6052), (3910, 5518), (4094, 5270)]