256297572

素因数分解:

$2^2\times 3^2\times {\mathrm{89}}^1\times {\mathrm{167}}^1\times {\mathrm{479}}^1$

素因数の和:745

約数の個数: 72

約数和(自身を含む): 660441600

約数和(自身を除く): 404144028

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 89, 167, 178, 267, 334, 356, 479, 501, 534, 668, 801, 958, 1002, 1068, 1437, 1503, 1602, 1916, 2004, 2874, 3006, 3204, 4311, 5748, 6012, 8622, 14863, 17244, 29726, 42631, 44589, 59452, 79993, 85262, 89178, 127893, 133767, 159986, 170524, 178356, 239979, 255786, 267534, 319972, 383679, 479958, 511572, 535068, 719937, 767358, 959916, 1439874, 1534716, 2879748, 7119377, 14238754, 21358131, 28477508, 42716262, 64074393, 85432524, 128148786, 256297572]

約数ペア:

[(1, 256297572), (2, 128148786), (3, 85432524), (4, 64074393), (6, 42716262), (9, 28477508), (12, 21358131), (18, 14238754), (36, 7119377), (89, 2879748), (167, 1534716), (178, 1439874), (267, 959916), (334, 767358), (356, 719937), (479, 535068), (501, 511572), (534, 479958), (668, 383679), (801, 319972), (958, 267534), (1002, 255786), (1068, 239979), (1437, 178356), (1503, 170524), (1602, 159986), (1916, 133767), (2004, 127893), (2874, 89178), (3006, 85262), (3204, 79993), (4311, 59452), (5748, 44589), (6012, 42631), (8622, 29726), (14863, 17244)]