20796090

素因数分解:

$2^1\times 3^1\times 5^1\times 7^3\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:121

約数の個数: 128

約数和(自身を含む): 60825600

約数和(自身を除く): 40029510

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 43, 47, 49, 70, 86, 94, 98, 105, 129, 141, 147, 210, 215, 235, 245, 258, 282, 294, 301, 329, 343, 430, 470, 490, 602, 645, 658, 686, 705, 735, 903, 987, 1029, 1290, 1410, 1470, 1505, 1645, 1715, 1806, 1974, 2021, 2058, 2107, 2303, 3010, 3290, 3430, 4042, 4214, 4515, 4606, 4935, 5145, 6063, 6321, 6909, 9030, 9870, 10105, 10290, 10535, 11515, 12126, 12642, 13818, 14147, 14749, 16121, 20210, 21070, 23030, 28294, 29498, 30315, 31605, 32242, 34545, 42441, 44247, 48363, 60630, 63210, 69090, 70735, 73745, 80605, 84882, 88494, 96726, 99029, 141470, 147490, 161210, 198058, 212205, 221235, 241815, 297087, 424410, 442470, 483630, 495145, 594174, 693203, 990290, 1386406, 1485435, 2079609, 2970870, 3466015, 4159218, 6932030, 10398045, 20796090]

約数ペア:

[(1, 20796090), (2, 10398045), (3, 6932030), (5, 4159218), (6, 3466015), (7, 2970870), (10, 2079609), (14, 1485435), (15, 1386406), (21, 990290), (30, 693203), (35, 594174), (42, 495145), (43, 483630), (47, 442470), (49, 424410), (70, 297087), (86, 241815), (94, 221235), (98, 212205), (105, 198058), (129, 161210), (141, 147490), (147, 141470), (210, 99029), (215, 96726), (235, 88494), (245, 84882), (258, 80605), (282, 73745), (294, 70735), (301, 69090), (329, 63210), (343, 60630), (430, 48363), (470, 44247), (490, 42441), (602, 34545), (645, 32242), (658, 31605), (686, 30315), (705, 29498), (735, 28294), (903, 23030), (987, 21070), (1029, 20210), (1290, 16121), (1410, 14749), (1470, 14147), (1505, 13818), (1645, 12642), (1715, 12126), (1806, 11515), (1974, 10535), (2021, 10290), (2058, 10105), (2107, 9870), (2303, 9030), (3010, 6909), (3290, 6321), (3430, 6063), (4042, 5145), (4214, 4935), (4515, 4606)]