20037420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8563}}^1$

素因数の和:8591

約数の個数: 72

約数和(自身を含む): 65463216

約数和(自身を除く): 45425796

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 8563, 17126, 25689, 34252, 42815, 51378, 77067, 85630, 102756, 111319, 128445, 154134, 171260, 222638, 256890, 308268, 333957, 385335, 445276, 513780, 556595, 667914, 770670, 1001871, 1113190, 1335828, 1541340, 1669785, 2003742, 2226380, 3339570, 4007484, 5009355, 6679140, 10018710, 20037420]

約数ペア:

[(1, 20037420), (2, 10018710), (3, 6679140), (4, 5009355), (5, 4007484), (6, 3339570), (9, 2226380), (10, 2003742), (12, 1669785), (13, 1541340), (15, 1335828), (18, 1113190), (20, 1001871), (26, 770670), (30, 667914), (36, 556595), (39, 513780), (45, 445276), (52, 385335), (60, 333957), (65, 308268), (78, 256890), (90, 222638), (117, 171260), (130, 154134), (156, 128445), (180, 111319), (195, 102756), (234, 85630), (260, 77067), (390, 51378), (468, 42815), (585, 34252), (780, 25689), (1170, 17126), (2340, 8563)]