172655920

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{52639}}^1$

素因数の和:52693

約数の個数: 40

約数和(自身を含む): 411223680

約数和(自身を除く): 238567760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 52639, 105278, 210556, 263195, 421112, 526390, 842224, 1052780, 2105560, 2158199, 4211120, 4316398, 8632796, 10790995, 17265592, 21581990, 34531184, 43163980, 86327960, 172655920]

約数ペア:

[(1, 172655920), (2, 86327960), (4, 43163980), (5, 34531184), (8, 21581990), (10, 17265592), (16, 10790995), (20, 8632796), (40, 4316398), (41, 4211120), (80, 2158199), (82, 2105560), (164, 1052780), (205, 842224), (328, 526390), (410, 421112), (656, 263195), (820, 210556), (1640, 105278), (3280, 52639)]