31658440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{211}}^1$

素因数の和:275

約数の個数: 96

約数和(自身を含む): 81204480

約数和(自身を除く): 49546040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 62, 88, 110, 121, 124, 155, 211, 220, 242, 248, 310, 341, 422, 440, 484, 605, 620, 682, 844, 968, 1055, 1210, 1240, 1364, 1688, 1705, 2110, 2321, 2420, 2728, 3410, 3751, 4220, 4642, 4840, 6541, 6820, 7502, 8440, 9284, 11605, 13082, 13640, 15004, 18568, 18755, 23210, 25531, 26164, 30008, 32705, 37510, 46420, 51062, 52328, 65410, 71951, 75020, 92840, 102124, 127655, 130820, 143902, 150040, 204248, 255310, 261640, 287804, 359755, 510620, 575608, 719510, 791461, 1021240, 1439020, 1582922, 2878040, 3165844, 3957305, 6331688, 7914610, 15829220, 31658440]

約数ペア:

[(1, 31658440), (2, 15829220), (4, 7914610), (5, 6331688), (8, 3957305), (10, 3165844), (11, 2878040), (20, 1582922), (22, 1439020), (31, 1021240), (40, 791461), (44, 719510), (55, 575608), (62, 510620), (88, 359755), (110, 287804), (121, 261640), (124, 255310), (155, 204248), (211, 150040), (220, 143902), (242, 130820), (248, 127655), (310, 102124), (341, 92840), (422, 75020), (440, 71951), (484, 65410), (605, 52328), (620, 51062), (682, 46420), (844, 37510), (968, 32705), (1055, 30008), (1210, 26164), (1240, 25531), (1364, 23210), (1688, 18755), (1705, 18568), (2110, 15004), (2321, 13640), (2420, 13082), (2728, 11605), (3410, 9284), (3751, 8440), (4220, 7502), (4642, 6820), (4840, 6541)]