20121637900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1487}}^2$

素因数の和:3008

約数の個数: 108

約数和(自身を含む): 53776415728

約数和(自身を除く): 33654777828

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 25, 26, 28, 35, 50, 52, 65, 70, 91, 100, 130, 140, 175, 182, 260, 325, 350, 364, 455, 650, 700, 910, 1300, 1487, 1820, 2275, 2974, 4550, 5948, 7435, 9100, 10409, 14870, 19331, 20818, 29740, 37175, 38662, 41636, 52045, 74350, 77324, 96655, 104090, 135317, 148700, 193310, 208180, 260225, 270634, 386620, 483275, 520450, 541268, 676585, 966550, 1040900, 1353170, 1933100, 2211169, 2706340, 3382925, 4422338, 6765850, 8844676, 11055845, 13531700, 15478183, 22111690, 28745197, 30956366, 44223380, 55279225, 57490394, 61912732, 77390915, 110558450, 114980788, 143725985, 154781830, 201216379, 221116900, 287451970, 309563660, 386954575, 402432758, 574903940, 718629925, 773909150, 804865516, 1006081895, 1437259850, 1547818300, 2012163790, 2874519700, 4024327580, 5030409475, 10060818950, 20121637900]

約数ペア:

[(1, 20121637900), (2, 10060818950), (4, 5030409475), (5, 4024327580), (7, 2874519700), (10, 2012163790), (13, 1547818300), (14, 1437259850), (20, 1006081895), (25, 804865516), (26, 773909150), (28, 718629925), (35, 574903940), (50, 402432758), (52, 386954575), (65, 309563660), (70, 287451970), (91, 221116900), (100, 201216379), (130, 154781830), (140, 143725985), (175, 114980788), (182, 110558450), (260, 77390915), (325, 61912732), (350, 57490394), (364, 55279225), (455, 44223380), (650, 30956366), (700, 28745197), (910, 22111690), (1300, 15478183), (1487, 13531700), (1820, 11055845), (2275, 8844676), (2974, 6765850), (4550, 4422338), (5948, 3382925), (7435, 2706340), (9100, 2211169), (10409, 1933100), (14870, 1353170), (19331, 1040900), (20818, 966550), (29740, 676585), (37175, 541268), (38662, 520450), (41636, 483275), (52045, 386620), (74350, 270634), (77324, 260225), (96655, 208180), (104090, 193310), (135317, 148700)]