205105180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1$

素因数の和:204

約数の個数: 144

約数和(自身を含む): 527216256

約数和(自身を除く): 322111076

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 49, 61, 70, 73, 94, 98, 122, 140, 146, 188, 196, 235, 244, 245, 292, 305, 329, 365, 427, 470, 490, 511, 610, 658, 730, 854, 940, 980, 1022, 1220, 1316, 1460, 1645, 1708, 2044, 2135, 2303, 2555, 2867, 2989, 3290, 3431, 3577, 4270, 4453, 4606, 5110, 5734, 5978, 6580, 6862, 7154, 8540, 8906, 9212, 10220, 11468, 11515, 11956, 13724, 14308, 14335, 14945, 17155, 17812, 17885, 20069, 22265, 23030, 24017, 28670, 29890, 31171, 34310, 35770, 40138, 44530, 46060, 48034, 57340, 59780, 62342, 68620, 71540, 80276, 89060, 96068, 100345, 120085, 124684, 140483, 155855, 168119, 200690, 209291, 218197, 240170, 280966, 311710, 336238, 401380, 418582, 436394, 480340, 561932, 623420, 672476, 702415, 837164, 840595, 872788, 1046455, 1090985, 1404830, 1465037, 1681190, 2092910, 2181970, 2809660, 2930074, 3362380, 4185820, 4363940, 5860148, 7325185, 10255259, 14650370, 20510518, 29300740, 41021036, 51276295, 102552590, 205105180]

約数ペア:

[(1, 205105180), (2, 102552590), (4, 51276295), (5, 41021036), (7, 29300740), (10, 20510518), (14, 14650370), (20, 10255259), (28, 7325185), (35, 5860148), (47, 4363940), (49, 4185820), (61, 3362380), (70, 2930074), (73, 2809660), (94, 2181970), (98, 2092910), (122, 1681190), (140, 1465037), (146, 1404830), (188, 1090985), (196, 1046455), (235, 872788), (244, 840595), (245, 837164), (292, 702415), (305, 672476), (329, 623420), (365, 561932), (427, 480340), (470, 436394), (490, 418582), (511, 401380), (610, 336238), (658, 311710), (730, 280966), (854, 240170), (940, 218197), (980, 209291), (1022, 200690), (1220, 168119), (1316, 155855), (1460, 140483), (1645, 124684), (1708, 120085), (2044, 100345), (2135, 96068), (2303, 89060), (2555, 80276), (2867, 71540), (2989, 68620), (3290, 62342), (3431, 59780), (3577, 57340), (4270, 48034), (4453, 46060), (4606, 44530), (5110, 40138), (5734, 35770), (5978, 34310), (6580, 31171), (6862, 29890), (7154, 28670), (8540, 24017), (8906, 23030), (9212, 22265), (10220, 20069), (11468, 17885), (11515, 17812), (11956, 17155), (13724, 14945), (14308, 14335)]