20210281360

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{479371}}^1$

素因数の和:479432

約数の個数: 80

約数和(自身を含む): 51357998592

約数和(自身を除く): 31147717232

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 31, 34, 40, 62, 68, 80, 85, 124, 136, 155, 170, 248, 272, 310, 340, 496, 527, 620, 680, 1054, 1240, 1360, 2108, 2480, 2635, 4216, 5270, 8432, 10540, 21080, 42160, 479371, 958742, 1917484, 2396855, 3834968, 4793710, 7669936, 8149307, 9587420, 14860501, 16298614, 19174840, 29721002, 32597228, 38349680, 40746535, 59442004, 65194456, 74302505, 81493070, 118884008, 130388912, 148605010, 162986140, 237768016, 252628517, 297210020, 325972280, 505257034, 594420040, 651944560, 1010514068, 1188840080, 1263142585, 2021028136, 2526285170, 4042056272, 5052570340, 10105140680, 20210281360]

約数ペア:

[(1, 20210281360), (2, 10105140680), (4, 5052570340), (5, 4042056272), (8, 2526285170), (10, 2021028136), (16, 1263142585), (17, 1188840080), (20, 1010514068), (31, 651944560), (34, 594420040), (40, 505257034), (62, 325972280), (68, 297210020), (80, 252628517), (85, 237768016), (124, 162986140), (136, 148605010), (155, 130388912), (170, 118884008), (248, 81493070), (272, 74302505), (310, 65194456), (340, 59442004), (496, 40746535), (527, 38349680), (620, 32597228), (680, 29721002), (1054, 19174840), (1240, 16298614), (1360, 14860501), (2108, 9587420), (2480, 8149307), (2635, 7669936), (4216, 4793710), (5270, 3834968), (8432, 2396855), (10540, 1917484), (21080, 958742), (42160, 479371)]