4081960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:202

約数の個数: 64

約数和(自身を含む): 9979200

約数和(自身を除く): 5897240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 41, 76, 82, 95, 131, 152, 164, 190, 205, 262, 328, 380, 410, 524, 655, 760, 779, 820, 1048, 1310, 1558, 1640, 2489, 2620, 3116, 3895, 4978, 5240, 5371, 6232, 7790, 9956, 10742, 12445, 15580, 19912, 21484, 24890, 26855, 31160, 42968, 49780, 53710, 99560, 102049, 107420, 204098, 214840, 408196, 510245, 816392, 1020490, 2040980, 4081960]

約数ペア:

[(1, 4081960), (2, 2040980), (4, 1020490), (5, 816392), (8, 510245), (10, 408196), (19, 214840), (20, 204098), (38, 107420), (40, 102049), (41, 99560), (76, 53710), (82, 49780), (95, 42968), (131, 31160), (152, 26855), (164, 24890), (190, 21484), (205, 19912), (262, 15580), (328, 12445), (380, 10742), (410, 9956), (524, 7790), (655, 6232), (760, 5371), (779, 5240), (820, 4978), (1048, 3895), (1310, 3116), (1558, 2620), (1640, 2489)]