25793240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{61}}^1$

素因数の和:145

約数の個数: 96

約数和(自身を含む): 66491280

約数和(自身を除く): 40698040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 31, 40, 44, 55, 61, 62, 88, 110, 122, 124, 155, 220, 244, 248, 305, 310, 341, 440, 488, 610, 620, 671, 682, 961, 1220, 1240, 1342, 1364, 1705, 1891, 1922, 2440, 2684, 2728, 3355, 3410, 3782, 3844, 4805, 5368, 6710, 6820, 7564, 7688, 9455, 9610, 10571, 13420, 13640, 15128, 18910, 19220, 20801, 21142, 26840, 37820, 38440, 41602, 42284, 52855, 58621, 75640, 83204, 84568, 104005, 105710, 117242, 166408, 208010, 211420, 234484, 293105, 416020, 422840, 468968, 586210, 644831, 832040, 1172420, 1289662, 2344840, 2579324, 3224155, 5158648, 6448310, 12896620, 25793240]

約数ペア:

[(1, 25793240), (2, 12896620), (4, 6448310), (5, 5158648), (8, 3224155), (10, 2579324), (11, 2344840), (20, 1289662), (22, 1172420), (31, 832040), (40, 644831), (44, 586210), (55, 468968), (61, 422840), (62, 416020), (88, 293105), (110, 234484), (122, 211420), (124, 208010), (155, 166408), (220, 117242), (244, 105710), (248, 104005), (305, 84568), (310, 83204), (341, 75640), (440, 58621), (488, 52855), (610, 42284), (620, 41602), (671, 38440), (682, 37820), (961, 26840), (1220, 21142), (1240, 20801), (1342, 19220), (1364, 18910), (1705, 15128), (1891, 13640), (1922, 13420), (2440, 10571), (2684, 9610), (2728, 9455), (3355, 7688), (3410, 7564), (3782, 6820), (3844, 6710), (4805, 5368)]