20725249780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{54377}}^1$

素因数の和:54481

約数の個数: 96

約数和(自身を含む): 49331721600

約数和(自身を除く): 28606471820

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 59, 68, 76, 85, 95, 118, 170, 190, 236, 295, 323, 340, 380, 590, 646, 1003, 1121, 1180, 1292, 1615, 2006, 2242, 3230, 4012, 4484, 5015, 5605, 6460, 10030, 11210, 19057, 20060, 22420, 38114, 54377, 76228, 95285, 108754, 190570, 217508, 271885, 381140, 543770, 924409, 1033163, 1087540, 1848818, 2066326, 3208243, 3697636, 4132652, 4622045, 5165815, 6416486, 9244090, 10331630, 12832972, 16041215, 17563771, 18488180, 20663260, 32082430, 35127542, 54540131, 60956617, 64164860, 70255084, 87818855, 109080262, 121913234, 175637710, 218160524, 243826468, 272700655, 304783085, 351275420, 545401310, 609566170, 1036262489, 1090802620, 1219132340, 2072524978, 4145049956, 5181312445, 10362624890, 20725249780]

約数ペア:

[(1, 20725249780), (2, 10362624890), (4, 5181312445), (5, 4145049956), (10, 2072524978), (17, 1219132340), (19, 1090802620), (20, 1036262489), (34, 609566170), (38, 545401310), (59, 351275420), (68, 304783085), (76, 272700655), (85, 243826468), (95, 218160524), (118, 175637710), (170, 121913234), (190, 109080262), (236, 87818855), (295, 70255084), (323, 64164860), (340, 60956617), (380, 54540131), (590, 35127542), (646, 32082430), (1003, 20663260), (1121, 18488180), (1180, 17563771), (1292, 16041215), (1615, 12832972), (2006, 10331630), (2242, 9244090), (3230, 6416486), (4012, 5165815), (4484, 4622045), (5015, 4132652), (5605, 3697636), (6460, 3208243), (10030, 2066326), (11210, 1848818), (19057, 1087540), (20060, 1033163), (22420, 924409), (38114, 543770), (54377, 381140), (76228, 271885), (95285, 217508), (108754, 190570)]