161780950

素因数分解:

$2^1\times 5^2\times {\mathrm{59}}^1\times {\mathrm{173}}^1\times {\mathrm{317}}^1$

素因数の和:561

約数の個数: 48

約数和(自身を含む): 308752560

約数和(自身を除く): 146971610

約数列:

[1, 2, 5, 10, 25, 50, 59, 118, 173, 295, 317, 346, 590, 634, 865, 1475, 1585, 1730, 2950, 3170, 4325, 7925, 8650, 10207, 15850, 18703, 20414, 37406, 51035, 54841, 93515, 102070, 109682, 187030, 255175, 274205, 467575, 510350, 548410, 935150, 1371025, 2742050, 3235619, 6471238, 16178095, 32356190, 80890475, 161780950]

約数ペア:

[(1, 161780950), (2, 80890475), (5, 32356190), (10, 16178095), (25, 6471238), (50, 3235619), (59, 2742050), (118, 1371025), (173, 935150), (295, 548410), (317, 510350), (346, 467575), (590, 274205), (634, 255175), (865, 187030), (1475, 109682), (1585, 102070), (1730, 93515), (2950, 54841), (3170, 51035), (4325, 37406), (7925, 20414), (8650, 18703), (10207, 15850)]