256931220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47057}}^1$

素因数の和:47089

約数の個数: 96

約数和(自身を含む): 885443328

約数和(自身を除く): 628512108

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 13, 14, 15, 20, 21, 26, 28, 30, 35, 39, 42, 52, 60, 65, 70, 78, 84, 91, 105, 130, 140, 156, 182, 195, 210, 260, 273, 364, 390, 420, 455, 546, 780, 910, 1092, 1365, 1820, 2730, 5460, 47057, 94114, 141171, 188228, 235285, 282342, 329399, 470570, 564684, 611741, 658798, 705855, 941140, 988197, 1223482, 1317596, 1411710, 1646995, 1835223, 1976394, 2446964, 2823420, 3058705, 3293990, 3670446, 3952788, 4282187, 4940985, 6117410, 6587980, 7340892, 8564374, 9176115, 9881970, 12234820, 12846561, 17128748, 18352230, 19763940, 21410935, 25693122, 36704460, 42821870, 51386244, 64232805, 85643740, 128465610, 256931220]

約数ペア:

[(1, 256931220), (2, 128465610), (3, 85643740), (4, 64232805), (5, 51386244), (6, 42821870), (7, 36704460), (10, 25693122), (12, 21410935), (13, 19763940), (14, 18352230), (15, 17128748), (20, 12846561), (21, 12234820), (26, 9881970), (28, 9176115), (30, 8564374), (35, 7340892), (39, 6587980), (42, 6117410), (52, 4940985), (60, 4282187), (65, 3952788), (70, 3670446), (78, 3293990), (84, 3058705), (91, 2823420), (105, 2446964), (130, 1976394), (140, 1835223), (156, 1646995), (182, 1411710), (195, 1317596), (210, 1223482), (260, 988197), (273, 941140), (364, 705855), (390, 658798), (420, 611741), (455, 564684), (546, 470570), (780, 329399), (910, 282342), (1092, 235285), (1365, 188228), (1820, 141171), (2730, 94114), (5460, 47057)]