78356960

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{211}}^2$

素因数の和:448

約数の個数: 72

約数和(自身を含む): 202908888

約数和(自身を除く): 124551928

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 211, 220, 352, 422, 440, 844, 880, 1055, 1688, 1760, 2110, 2321, 3376, 4220, 4642, 6752, 8440, 9284, 11605, 16880, 18568, 23210, 33760, 37136, 44521, 46420, 74272, 89042, 92840, 178084, 185680, 222605, 356168, 371360, 445210, 489731, 712336, 890420, 979462, 1424672, 1780840, 1958924, 2448655, 3561680, 3917848, 4897310, 7123360, 7835696, 9794620, 15671392, 19589240, 39178480, 78356960]

約数ペア:

[(1, 78356960), (2, 39178480), (4, 19589240), (5, 15671392), (8, 9794620), (10, 7835696), (11, 7123360), (16, 4897310), (20, 3917848), (22, 3561680), (32, 2448655), (40, 1958924), (44, 1780840), (55, 1424672), (80, 979462), (88, 890420), (110, 712336), (160, 489731), (176, 445210), (211, 371360), (220, 356168), (352, 222605), (422, 185680), (440, 178084), (844, 92840), (880, 89042), (1055, 74272), (1688, 46420), (1760, 44521), (2110, 37136), (2321, 33760), (3376, 23210), (4220, 18568), (4642, 16880), (6752, 11605), (8440, 9284)]