81928908

素因数分解:

$2^2\times 3^5\times {\mathrm{31}}^1\times {\mathrm{2719}}^1$

素因数の和:2769

約数の個数: 72

約数和(自身を含む): 221777920

約数和(自身を除く): 139849012

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 31, 36, 54, 62, 81, 93, 108, 124, 162, 186, 243, 279, 324, 372, 486, 558, 837, 972, 1116, 1674, 2511, 2719, 3348, 5022, 5438, 7533, 8157, 10044, 10876, 15066, 16314, 24471, 30132, 32628, 48942, 73413, 84289, 97884, 146826, 168578, 220239, 252867, 293652, 337156, 440478, 505734, 660717, 758601, 880956, 1011468, 1321434, 1517202, 2275803, 2642868, 3034404, 4551606, 6827409, 9103212, 13654818, 20482227, 27309636, 40964454, 81928908]

約数ペア:

[(1, 81928908), (2, 40964454), (3, 27309636), (4, 20482227), (6, 13654818), (9, 9103212), (12, 6827409), (18, 4551606), (27, 3034404), (31, 2642868), (36, 2275803), (54, 1517202), (62, 1321434), (81, 1011468), (93, 880956), (108, 758601), (124, 660717), (162, 505734), (186, 440478), (243, 337156), (279, 293652), (324, 252867), (372, 220239), (486, 168578), (558, 146826), (837, 97884), (972, 84289), (1116, 73413), (1674, 48942), (2511, 32628), (2719, 30132), (3348, 24471), (5022, 16314), (5438, 15066), (7533, 10876), (8157, 10044)]