1628142725

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{73}}^2\times {\mathrm{101}}^1$

素因数の和:279

約数の個数: 54

約数和(自身を含む): 2272210038

約数和(自身を除く): 644067313

約数列:

[1, 5, 11, 25, 55, 73, 101, 121, 275, 365, 505, 605, 803, 1111, 1825, 2525, 3025, 4015, 5329, 5555, 7373, 8833, 12221, 20075, 26645, 27775, 36865, 44165, 58619, 61105, 81103, 133225, 184325, 220825, 293095, 305525, 405515, 538229, 644809, 892133, 1465475, 2027575, 2691145, 3224045, 4460665, 5920519, 13455725, 16120225, 22303325, 29602595, 65125709, 148012975, 325628545, 1628142725]

約数ペア:

[(1, 1628142725), (5, 325628545), (11, 148012975), (25, 65125709), (55, 29602595), (73, 22303325), (101, 16120225), (121, 13455725), (275, 5920519), (365, 4460665), (505, 3224045), (605, 2691145), (803, 2027575), (1111, 1465475), (1825, 892133), (2525, 644809), (3025, 538229), (4015, 405515), (5329, 305525), (5555, 293095), (7373, 220825), (8833, 184325), (12221, 133225), (20075, 81103), (26645, 61105), (27775, 58619), (36865, 44165)]