178027280

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{191}}^2$

素因数の和:456

約数の個数: 60

約数和(自身を含む): 422913036

約数和(自身を除く): 244885756

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 191, 244, 305, 382, 488, 610, 764, 955, 976, 1220, 1528, 1910, 2440, 3056, 3820, 4880, 7640, 11651, 15280, 23302, 36481, 46604, 58255, 72962, 93208, 116510, 145924, 182405, 186416, 233020, 291848, 364810, 466040, 583696, 729620, 932080, 1459240, 2225341, 2918480, 4450682, 8901364, 11126705, 17802728, 22253410, 35605456, 44506820, 89013640, 178027280]

約数ペア:

[(1, 178027280), (2, 89013640), (4, 44506820), (5, 35605456), (8, 22253410), (10, 17802728), (16, 11126705), (20, 8901364), (40, 4450682), (61, 2918480), (80, 2225341), (122, 1459240), (191, 932080), (244, 729620), (305, 583696), (382, 466040), (488, 364810), (610, 291848), (764, 233020), (955, 186416), (976, 182405), (1220, 145924), (1528, 116510), (1910, 93208), (2440, 72962), (3056, 58255), (3820, 46604), (4880, 36481), (7640, 23302), (11651, 15280)]