8045981960

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{631}}^1\times {\mathrm{1669}}^1$

素因数の和:2502

約数の個数: 64

約数和(自身を含む): 18238003200

約数和(自身を除く): 10192021240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 631, 764, 955, 1262, 1528, 1669, 1910, 2524, 3155, 3338, 3820, 5048, 6310, 6676, 7640, 8345, 12620, 13352, 16690, 25240, 33380, 66760, 120521, 241042, 318779, 482084, 602605, 637558, 964168, 1053139, 1205210, 1275116, 1593895, 2106278, 2410420, 2550232, 3187790, 4212556, 4820840, 5265695, 6375580, 8425112, 10531390, 12751160, 21062780, 42125560, 201149549, 402299098, 804598196, 1005747745, 1609196392, 2011495490, 4022990980, 8045981960]

約数ペア:

[(1, 8045981960), (2, 4022990980), (4, 2011495490), (5, 1609196392), (8, 1005747745), (10, 804598196), (20, 402299098), (40, 201149549), (191, 42125560), (382, 21062780), (631, 12751160), (764, 10531390), (955, 8425112), (1262, 6375580), (1528, 5265695), (1669, 4820840), (1910, 4212556), (2524, 3187790), (3155, 2550232), (3338, 2410420), (3820, 2106278), (5048, 1593895), (6310, 1275116), (6676, 1205210), (7640, 1053139), (8345, 964168), (12620, 637558), (13352, 602605), (16690, 482084), (25240, 318779), (33380, 241042), (66760, 120521)]