155983940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{283}}^1$

素因数の和:457

約数の個数: 96

約数和(自身を含む): 390856704

約数和(自身を除く): 234872764

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 127, 140, 155, 217, 254, 283, 310, 434, 508, 566, 620, 635, 868, 889, 1085, 1132, 1270, 1415, 1778, 1981, 2170, 2540, 2830, 3556, 3937, 3962, 4340, 4445, 5660, 7874, 7924, 8773, 8890, 9905, 15748, 17546, 17780, 19685, 19810, 27559, 35092, 35941, 39370, 39620, 43865, 55118, 61411, 71882, 78740, 87730, 110236, 122822, 137795, 143764, 175460, 179705, 245644, 251587, 275590, 307055, 359410, 503174, 551180, 614110, 718820, 1006348, 1114171, 1228220, 1257935, 2228342, 2515870, 4456684, 5031740, 5570855, 7799197, 11141710, 15598394, 22283420, 31196788, 38995985, 77991970, 155983940]

約数ペア:

[(1, 155983940), (2, 77991970), (4, 38995985), (5, 31196788), (7, 22283420), (10, 15598394), (14, 11141710), (20, 7799197), (28, 5570855), (31, 5031740), (35, 4456684), (62, 2515870), (70, 2228342), (124, 1257935), (127, 1228220), (140, 1114171), (155, 1006348), (217, 718820), (254, 614110), (283, 551180), (310, 503174), (434, 359410), (508, 307055), (566, 275590), (620, 251587), (635, 245644), (868, 179705), (889, 175460), (1085, 143764), (1132, 137795), (1270, 122822), (1415, 110236), (1778, 87730), (1981, 78740), (2170, 71882), (2540, 61411), (2830, 55118), (3556, 43865), (3937, 39620), (3962, 39370), (4340, 35941), (4445, 35092), (5660, 27559), (7874, 19810), (7924, 19685), (8773, 17780), (8890, 17546), (9905, 15748)]