402501520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{9547}}^1$

素因数の和:9608

約数の個数: 80

約数和(自身を含む): 1022934528

約数和(自身を除く): 620433008

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 34, 40, 62, 68, 80, 85, 124, 136, 155, 170, 248, 272, 310, 340, 496, 527, 620, 680, 1054, 1240, 1360, 2108, 2480, 2635, 4216, 5270, 8432, 9547, 10540, 19094, 21080, 38188, 42160, 47735, 76376, 95470, 152752, 162299, 190940, 295957, 324598, 381880, 591914, 649196, 763760, 811495, 1183828, 1298392, 1479785, 1622990, 2367656, 2596784, 2959570, 3245980, 4735312, 5031269, 5919140, 6491960, 10062538, 11838280, 12983920, 20125076, 23676560, 25156345, 40250152, 50312690, 80500304, 100625380, 201250760, 402501520]

約数ペア:

[(1, 402501520), (2, 201250760), (4, 100625380), (5, 80500304), (8, 50312690), (10, 40250152), (16, 25156345), (17, 23676560), (20, 20125076), (31, 12983920), (34, 11838280), (40, 10062538), (62, 6491960), (68, 5919140), (80, 5031269), (85, 4735312), (124, 3245980), (136, 2959570), (155, 2596784), (170, 2367656), (248, 1622990), (272, 1479785), (310, 1298392), (340, 1183828), (496, 811495), (527, 763760), (620, 649196), (680, 591914), (1054, 381880), (1240, 324598), (1360, 295957), (2108, 190940), (2480, 162299), (2635, 152752), (4216, 95470), (5270, 76376), (8432, 47735), (9547, 42160), (10540, 38188), (19094, 21080)]