55810120

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{257}}^1$

素因数の和:418

約数の個数: 64

約数和(自身を含む): 129567600

約数和(自身を除く): 73757480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 89, 122, 178, 244, 257, 305, 356, 445, 488, 514, 610, 712, 890, 1028, 1220, 1285, 1780, 2056, 2440, 2570, 3560, 5140, 5429, 10280, 10858, 15677, 21716, 22873, 27145, 31354, 43432, 45746, 54290, 62708, 78385, 91492, 108580, 114365, 125416, 156770, 182984, 217160, 228730, 313540, 457460, 627080, 914920, 1395253, 2790506, 5581012, 6976265, 11162024, 13952530, 27905060, 55810120]

約数ペア:

[(1, 55810120), (2, 27905060), (4, 13952530), (5, 11162024), (8, 6976265), (10, 5581012), (20, 2790506), (40, 1395253), (61, 914920), (89, 627080), (122, 457460), (178, 313540), (244, 228730), (257, 217160), (305, 182984), (356, 156770), (445, 125416), (488, 114365), (514, 108580), (610, 91492), (712, 78385), (890, 62708), (1028, 54290), (1220, 45746), (1285, 43432), (1780, 31354), (2056, 27145), (2440, 22873), (2570, 21716), (3560, 15677), (5140, 10858), (5429, 10280)]