18939971120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{2141}}^1\times {\mathrm{15797}}^1$

素因数の和:17958

約数の個数: 80

約数和(自身を含む): 50352902208

約数和(自身を除く): 31412931088

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 2141, 4282, 8564, 10705, 14987, 15797, 17128, 21410, 29974, 31594, 34256, 42820, 59948, 63188, 74935, 78985, 85640, 110579, 119896, 126376, 149870, 157970, 171280, 221158, 239792, 252752, 299740, 315940, 442316, 552895, 599480, 631880, 884632, 1105790, 1198960, 1263760, 1769264, 2211580, 4423160, 8846320, 33821377, 67642754, 135285508, 169106885, 236749639, 270571016, 338213770, 473499278, 541142032, 676427540, 946998556, 1183748195, 1352855080, 1893997112, 2367496390, 2705710160, 3787994224, 4734992780, 9469985560, 18939971120]

約数ペア:

[(1, 18939971120), (2, 9469985560), (4, 4734992780), (5, 3787994224), (7, 2705710160), (8, 2367496390), (10, 1893997112), (14, 1352855080), (16, 1183748195), (20, 946998556), (28, 676427540), (35, 541142032), (40, 473499278), (56, 338213770), (70, 270571016), (80, 236749639), (112, 169106885), (140, 135285508), (280, 67642754), (560, 33821377), (2141, 8846320), (4282, 4423160), (8564, 2211580), (10705, 1769264), (14987, 1263760), (15797, 1198960), (17128, 1105790), (21410, 884632), (29974, 631880), (31594, 599480), (34256, 552895), (42820, 442316), (59948, 315940), (63188, 299740), (74935, 252752), (78985, 239792), (85640, 221158), (110579, 171280), (119896, 157970), (126376, 149870)]