254957960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{3257}}^1$

素因数の和:3390

約数の個数: 64

約数和(自身を含む): 609897600

約数和(自身を除く): 354939640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 103, 152, 190, 206, 380, 412, 515, 760, 824, 1030, 1957, 2060, 3257, 3914, 4120, 6514, 7828, 9785, 13028, 15656, 16285, 19570, 26056, 32570, 39140, 61883, 65140, 78280, 123766, 130280, 247532, 309415, 335471, 495064, 618830, 670942, 1237660, 1341884, 1677355, 2475320, 2683768, 3354710, 6373949, 6709420, 12747898, 13418840, 25495796, 31869745, 50991592, 63739490, 127478980, 254957960]

約数ペア:

[(1, 254957960), (2, 127478980), (4, 63739490), (5, 50991592), (8, 31869745), (10, 25495796), (19, 13418840), (20, 12747898), (38, 6709420), (40, 6373949), (76, 3354710), (95, 2683768), (103, 2475320), (152, 1677355), (190, 1341884), (206, 1237660), (380, 670942), (412, 618830), (515, 495064), (760, 335471), (824, 309415), (1030, 247532), (1957, 130280), (2060, 123766), (3257, 78280), (3914, 65140), (4120, 61883), (6514, 39140), (7828, 32570), (9785, 26056), (13028, 19570), (15656, 16285)]