217528020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{52543}}^1$

素因数の和:52581

約数の個数: 72

約数和(自身を含む): 688536576

約数和(自身を除く): 471008556

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 36, 45, 46, 60, 69, 90, 92, 115, 138, 180, 207, 230, 276, 345, 414, 460, 690, 828, 1035, 1380, 2070, 4140, 52543, 105086, 157629, 210172, 262715, 315258, 472887, 525430, 630516, 788145, 945774, 1050860, 1208489, 1576290, 1891548, 2364435, 2416978, 3152580, 3625467, 4728870, 4833956, 6042445, 7250934, 9457740, 10876401, 12084890, 14501868, 18127335, 21752802, 24169780, 36254670, 43505604, 54382005, 72509340, 108764010, 217528020]

約数ペア:

[(1, 217528020), (2, 108764010), (3, 72509340), (4, 54382005), (5, 43505604), (6, 36254670), (9, 24169780), (10, 21752802), (12, 18127335), (15, 14501868), (18, 12084890), (20, 10876401), (23, 9457740), (30, 7250934), (36, 6042445), (45, 4833956), (46, 4728870), (60, 3625467), (69, 3152580), (90, 2416978), (92, 2364435), (115, 1891548), (138, 1576290), (180, 1208489), (207, 1050860), (230, 945774), (276, 788145), (345, 630516), (414, 525430), (460, 472887), (690, 315258), (828, 262715), (1035, 210172), (1380, 157629), (2070, 105086), (4140, 52543)]