20924461840

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2399}}^1\times {\mathrm{3517}}^1$

素因数の和:5960

約数の個数: 80

約数和(自身を含む): 50253926400

約数和(自身を除く): 29329464560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2399, 2480, 3517, 4798, 7034, 9596, 11995, 14068, 17585, 19192, 23990, 28136, 35170, 38384, 47980, 56272, 70340, 74369, 95960, 109027, 140680, 148738, 191920, 218054, 281360, 297476, 371845, 436108, 545135, 594952, 743690, 872216, 1090270, 1189904, 1487380, 1744432, 2180540, 2974760, 4361080, 5949520, 8437283, 8722160, 16874566, 33749132, 42186415, 67498264, 84372830, 134996528, 168745660, 261555773, 337491320, 523111546, 674982640, 1046223092, 1307778865, 2092446184, 2615557730, 4184892368, 5231115460, 10462230920, 20924461840]

約数ペア:

[(1, 20924461840), (2, 10462230920), (4, 5231115460), (5, 4184892368), (8, 2615557730), (10, 2092446184), (16, 1307778865), (20, 1046223092), (31, 674982640), (40, 523111546), (62, 337491320), (80, 261555773), (124, 168745660), (155, 134996528), (248, 84372830), (310, 67498264), (496, 42186415), (620, 33749132), (1240, 16874566), (2399, 8722160), (2480, 8437283), (3517, 5949520), (4798, 4361080), (7034, 2974760), (9596, 2180540), (11995, 1744432), (14068, 1487380), (17585, 1189904), (19192, 1090270), (23990, 872216), (28136, 743690), (35170, 594952), (38384, 545135), (47980, 436108), (56272, 371845), (70340, 297476), (74369, 281360), (95960, 218054), (109027, 191920), (140680, 148738)]