156913780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{491}}^1$

素因数の和:577

約数の個数: 72

約数和(自身を含む): 359966880

約数和(自身を除く): 203053100

約数列:

[1, 2, 4, 5, 10, 19, 20, 29, 38, 58, 76, 95, 116, 145, 190, 290, 380, 491, 551, 580, 841, 982, 1102, 1682, 1964, 2204, 2455, 2755, 3364, 4205, 4910, 5510, 8410, 9329, 9820, 11020, 14239, 15979, 16820, 18658, 28478, 31958, 37316, 46645, 56956, 63916, 71195, 79895, 93290, 142390, 159790, 186580, 270541, 284780, 319580, 412931, 541082, 825862, 1082164, 1352705, 1651724, 2064655, 2705410, 4129310, 5410820, 7845689, 8258620, 15691378, 31382756, 39228445, 78456890, 156913780]

約数ペア:

[(1, 156913780), (2, 78456890), (4, 39228445), (5, 31382756), (10, 15691378), (19, 8258620), (20, 7845689), (29, 5410820), (38, 4129310), (58, 2705410), (76, 2064655), (95, 1651724), (116, 1352705), (145, 1082164), (190, 825862), (290, 541082), (380, 412931), (491, 319580), (551, 284780), (580, 270541), (841, 186580), (982, 159790), (1102, 142390), (1682, 93290), (1964, 79895), (2204, 71195), (2455, 63916), (2755, 56956), (3364, 46645), (4205, 37316), (4910, 31958), (5510, 28478), (8410, 18658), (9329, 16820), (9820, 15979), (11020, 14239)]