20699693680

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{953}}^1\times {\mathrm{15971}}^1$

素因数の和:16954

約数の個数: 80

約数和(自身を含む): 51014440224

約数和(自身を除く): 30314746544

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 953, 1360, 1906, 3812, 4765, 7624, 9530, 15248, 15971, 16201, 19060, 31942, 32402, 38120, 63884, 64804, 76240, 79855, 81005, 127768, 129608, 159710, 162010, 255536, 259216, 271507, 319420, 324020, 543014, 638840, 648040, 1086028, 1277680, 1296080, 1357535, 2172056, 2715070, 4344112, 5430140, 10860280, 15220363, 21720560, 30440726, 60881452, 76101815, 121762904, 152203630, 243525808, 258746171, 304407260, 517492342, 608814520, 1034984684, 1217629040, 1293730855, 2069969368, 2587461710, 4139938736, 5174923420, 10349846840, 20699693680]

約数ペア:

[(1, 20699693680), (2, 10349846840), (4, 5174923420), (5, 4139938736), (8, 2587461710), (10, 2069969368), (16, 1293730855), (17, 1217629040), (20, 1034984684), (34, 608814520), (40, 517492342), (68, 304407260), (80, 258746171), (85, 243525808), (136, 152203630), (170, 121762904), (272, 76101815), (340, 60881452), (680, 30440726), (953, 21720560), (1360, 15220363), (1906, 10860280), (3812, 5430140), (4765, 4344112), (7624, 2715070), (9530, 2172056), (15248, 1357535), (15971, 1296080), (16201, 1277680), (19060, 1086028), (31942, 648040), (32402, 638840), (38120, 543014), (63884, 324020), (64804, 319420), (76240, 271507), (79855, 259216), (81005, 255536), (127768, 162010), (129608, 159710)]