20160879700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{6563}}^1$

素因数の和:6746

約数の個数: 144

約数和(自身を含む): 50252408640

約数和(自身を除く): 30091528940

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 25, 26, 34, 50, 52, 65, 68, 85, 100, 130, 139, 170, 221, 260, 278, 325, 340, 425, 442, 556, 650, 695, 850, 884, 1105, 1300, 1390, 1700, 1807, 2210, 2363, 2780, 3475, 3614, 4420, 4726, 5525, 6563, 6950, 7228, 9035, 9452, 11050, 11815, 13126, 13900, 18070, 22100, 23630, 26252, 30719, 32815, 36140, 45175, 47260, 59075, 61438, 65630, 85319, 90350, 111571, 118150, 122876, 131260, 153595, 164075, 170638, 180700, 223142, 236300, 307190, 328150, 341276, 426595, 446284, 557855, 614380, 656300, 767975, 853190, 912257, 1115710, 1450423, 1535950, 1706380, 1824514, 2132975, 2231420, 2789275, 2900846, 3071900, 3649028, 4265950, 4561285, 5578550, 5801692, 7252115, 8531900, 9122570, 11157100, 11859341, 14504230, 15508369, 18245140, 22806425, 23718682, 29008460, 31016738, 36260575, 45612850, 47437364, 59296705, 62033476, 72521150, 77541845, 91225700, 118593410, 145042300, 155083690, 201608797, 237186820, 296483525, 310167380, 387709225, 403217594, 592967050, 775418450, 806435188, 1008043985, 1185934100, 1550836900, 2016087970, 4032175940, 5040219925, 10080439850, 20160879700]

約数ペア:

[(1, 20160879700), (2, 10080439850), (4, 5040219925), (5, 4032175940), (10, 2016087970), (13, 1550836900), (17, 1185934100), (20, 1008043985), (25, 806435188), (26, 775418450), (34, 592967050), (50, 403217594), (52, 387709225), (65, 310167380), (68, 296483525), (85, 237186820), (100, 201608797), (130, 155083690), (139, 145042300), (170, 118593410), (221, 91225700), (260, 77541845), (278, 72521150), (325, 62033476), (340, 59296705), (425, 47437364), (442, 45612850), (556, 36260575), (650, 31016738), (695, 29008460), (850, 23718682), (884, 22806425), (1105, 18245140), (1300, 15508369), (1390, 14504230), (1700, 11859341), (1807, 11157100), (2210, 9122570), (2363, 8531900), (2780, 7252115), (3475, 5801692), (3614, 5578550), (4420, 4561285), (4726, 4265950), (5525, 3649028), (6563, 3071900), (6950, 2900846), (7228, 2789275), (9035, 2231420), (9452, 2132975), (11050, 1824514), (11815, 1706380), (13126, 1535950), (13900, 1450423), (18070, 1115710), (22100, 912257), (23630, 853190), (26252, 767975), (30719, 656300), (32815, 614380), (36140, 557855), (45175, 446284), (47260, 426595), (59075, 341276), (61438, 328150), (65630, 307190), (85319, 236300), (90350, 223142), (111571, 180700), (118150, 170638), (122876, 164075), (131260, 153595)]