51800080

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{643}}^1$

素因数の和:728

約数の個数: 80

約数和(自身を含む): 129366720

約数和(自身を除く): 77566640

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 53, 76, 80, 95, 106, 152, 190, 212, 265, 304, 380, 424, 530, 643, 760, 848, 1007, 1060, 1286, 1520, 2014, 2120, 2572, 3215, 4028, 4240, 5035, 5144, 6430, 8056, 10070, 10288, 12217, 12860, 16112, 20140, 24434, 25720, 34079, 40280, 48868, 51440, 61085, 68158, 80560, 97736, 122170, 136316, 170395, 195472, 244340, 272632, 340790, 488680, 545264, 647501, 681580, 977360, 1295002, 1363160, 2590004, 2726320, 3237505, 5180008, 6475010, 10360016, 12950020, 25900040, 51800080]

約数ペア:

[(1, 51800080), (2, 25900040), (4, 12950020), (5, 10360016), (8, 6475010), (10, 5180008), (16, 3237505), (19, 2726320), (20, 2590004), (38, 1363160), (40, 1295002), (53, 977360), (76, 681580), (80, 647501), (95, 545264), (106, 488680), (152, 340790), (190, 272632), (212, 244340), (265, 195472), (304, 170395), (380, 136316), (424, 122170), (530, 97736), (643, 80560), (760, 68158), (848, 61085), (1007, 51440), (1060, 48868), (1286, 40280), (1520, 34079), (2014, 25720), (2120, 24434), (2572, 20140), (3215, 16112), (4028, 12860), (4240, 12217), (5035, 10288), (5144, 10070), (6430, 8056)]