90017960

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{419}}^1$

素因数の和:602

約数の個数: 64

約数和(自身を含む): 209563200

約数和(自身を除く): 119545240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 131, 164, 205, 262, 328, 410, 419, 524, 655, 820, 838, 1048, 1310, 1640, 1676, 2095, 2620, 3352, 4190, 5240, 5371, 8380, 10742, 16760, 17179, 21484, 26855, 34358, 42968, 53710, 54889, 68716, 85895, 107420, 109778, 137432, 171790, 214840, 219556, 274445, 343580, 439112, 548890, 687160, 1097780, 2195560, 2250449, 4500898, 9001796, 11252245, 18003592, 22504490, 45008980, 90017960]

約数ペア:

[(1, 90017960), (2, 45008980), (4, 22504490), (5, 18003592), (8, 11252245), (10, 9001796), (20, 4500898), (40, 2250449), (41, 2195560), (82, 1097780), (131, 687160), (164, 548890), (205, 439112), (262, 343580), (328, 274445), (410, 219556), (419, 214840), (524, 171790), (655, 137432), (820, 109778), (838, 107420), (1048, 85895), (1310, 68716), (1640, 54889), (1676, 53710), (2095, 42968), (2620, 34358), (3352, 26855), (4190, 21484), (5240, 17179), (5371, 16760), (8380, 10742)]