1661900560

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{5693}}^1$

素因数の和:5836

約数の個数: 80

約数和(自身を含む): 4003337520

約数和(自身を除く): 2341436960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 89, 164, 178, 205, 328, 356, 410, 445, 656, 712, 820, 890, 1424, 1640, 1780, 3280, 3560, 3649, 5693, 7120, 7298, 11386, 14596, 18245, 22772, 28465, 29192, 36490, 45544, 56930, 58384, 72980, 91088, 113860, 145960, 227720, 233413, 291920, 455440, 466826, 506677, 933652, 1013354, 1167065, 1867304, 2026708, 2334130, 2533385, 3734608, 4053416, 4668260, 5066770, 8106832, 9336520, 10133540, 18673040, 20267080, 20773757, 40534160, 41547514, 83095028, 103868785, 166190056, 207737570, 332380112, 415475140, 830950280, 1661900560]

約数ペア:

[(1, 1661900560), (2, 830950280), (4, 415475140), (5, 332380112), (8, 207737570), (10, 166190056), (16, 103868785), (20, 83095028), (40, 41547514), (41, 40534160), (80, 20773757), (82, 20267080), (89, 18673040), (164, 10133540), (178, 9336520), (205, 8106832), (328, 5066770), (356, 4668260), (410, 4053416), (445, 3734608), (656, 2533385), (712, 2334130), (820, 2026708), (890, 1867304), (1424, 1167065), (1640, 1013354), (1780, 933652), (3280, 506677), (3560, 466826), (3649, 455440), (5693, 291920), (7120, 233413), (7298, 227720), (11386, 145960), (14596, 113860), (18245, 91088), (22772, 72980), (28465, 58384), (29192, 56930), (36490, 45544)]