20917350

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:131

約数の個数: 144

約数和(自身を含む): 61281792

約数和(自身を除く): 40364442

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 25, 30, 43, 45, 46, 47, 50, 69, 75, 86, 90, 94, 115, 129, 138, 141, 150, 207, 215, 225, 230, 235, 258, 282, 345, 387, 414, 423, 430, 450, 470, 575, 645, 690, 705, 774, 846, 989, 1035, 1075, 1081, 1150, 1175, 1290, 1410, 1725, 1935, 1978, 2021, 2070, 2115, 2150, 2162, 2350, 2967, 3225, 3243, 3450, 3525, 3870, 4042, 4230, 4945, 5175, 5405, 5934, 6063, 6450, 6486, 7050, 8901, 9675, 9729, 9890, 10105, 10350, 10575, 10810, 12126, 14835, 16215, 17802, 18189, 19350, 19458, 20210, 21150, 24725, 27025, 29670, 30315, 32430, 36378, 44505, 46483, 48645, 49450, 50525, 54050, 60630, 74175, 81075, 89010, 90945, 92966, 97290, 101050, 139449, 148350, 151575, 162150, 181890, 222525, 232415, 243225, 278898, 303150, 418347, 445050, 454725, 464830, 486450, 697245, 836694, 909450, 1162075, 1394490, 2091735, 2324150, 3486225, 4183470, 6972450, 10458675, 20917350]

約数ペア:

[(1, 20917350), (2, 10458675), (3, 6972450), (5, 4183470), (6, 3486225), (9, 2324150), (10, 2091735), (15, 1394490), (18, 1162075), (23, 909450), (25, 836694), (30, 697245), (43, 486450), (45, 464830), (46, 454725), (47, 445050), (50, 418347), (69, 303150), (75, 278898), (86, 243225), (90, 232415), (94, 222525), (115, 181890), (129, 162150), (138, 151575), (141, 148350), (150, 139449), (207, 101050), (215, 97290), (225, 92966), (230, 90945), (235, 89010), (258, 81075), (282, 74175), (345, 60630), (387, 54050), (414, 50525), (423, 49450), (430, 48645), (450, 46483), (470, 44505), (575, 36378), (645, 32430), (690, 30315), (705, 29670), (774, 27025), (846, 24725), (989, 21150), (1035, 20210), (1075, 19458), (1081, 19350), (1150, 18189), (1175, 17802), (1290, 16215), (1410, 14835), (1725, 12126), (1935, 10810), (1978, 10575), (2021, 10350), (2070, 10105), (2115, 9890), (2150, 9729), (2162, 9675), (2350, 8901), (2967, 7050), (3225, 6486), (3243, 6450), (3450, 6063), (3525, 5934), (3870, 5405), (4042, 5175), (4230, 4945)]