161203790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{563}}^1$

素因数の和:737

約数の個数: 64

約数和(自身を含む): 336234240

約数和(自身を除く): 175030450

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 137, 190, 209, 274, 418, 563, 685, 1045, 1126, 1370, 1507, 2090, 2603, 2815, 3014, 5206, 5630, 6193, 7535, 10697, 12386, 13015, 15070, 21394, 26030, 28633, 30965, 53485, 57266, 61930, 77131, 106970, 117667, 143165, 154262, 235334, 286330, 385655, 588335, 771310, 848441, 1176670, 1465489, 1696882, 2930978, 4242205, 7327445, 8484410, 14654890, 16120379, 32240758, 80601895, 161203790]

約数ペア:

[(1, 161203790), (2, 80601895), (5, 32240758), (10, 16120379), (11, 14654890), (19, 8484410), (22, 7327445), (38, 4242205), (55, 2930978), (95, 1696882), (110, 1465489), (137, 1176670), (190, 848441), (209, 771310), (274, 588335), (418, 385655), (563, 286330), (685, 235334), (1045, 154262), (1126, 143165), (1370, 117667), (1507, 106970), (2090, 77131), (2603, 61930), (2815, 57266), (3014, 53485), (5206, 30965), (5630, 28633), (6193, 26030), (7535, 21394), (10697, 15070), (12386, 13015)]