20804513470

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^3\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1051}}^1$

素因数の和:1167

約数の個数: 128

約数和(自身を含む): 43805784960

約数和(自身を除く): 23001271490

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 53, 65, 85, 106, 130, 169, 170, 221, 265, 338, 442, 530, 689, 845, 901, 1051, 1105, 1378, 1690, 1802, 2102, 2197, 2210, 2873, 3445, 4394, 4505, 5255, 5746, 6890, 8957, 9010, 10510, 10985, 11713, 13663, 14365, 17867, 17914, 21970, 23426, 27326, 28730, 35734, 37349, 44785, 55703, 58565, 68315, 74698, 89335, 89570, 111406, 116441, 117130, 136630, 152269, 177619, 178670, 186745, 232271, 232882, 278515, 304538, 355238, 373490, 464542, 557030, 582205, 724139, 761345, 888095, 946951, 1161355, 1164410, 1448278, 1522690, 1776190, 1893902, 1979497, 2309047, 2322710, 3019523, 3620695, 3958994, 4618094, 4734755, 6039046, 7241390, 9413807, 9469510, 9897485, 11545235, 12310363, 15097615, 18827614, 19794970, 23090470, 24620726, 30195230, 39253799, 47069035, 61551815, 78507598, 94138070, 122379491, 123103630, 160034719, 196268995, 244758982, 320069438, 392537990, 611897455, 800173595, 1223794910, 1600347190, 2080451347, 4160902694, 10402256735, 20804513470]

約数ペア:

[(1, 20804513470), (2, 10402256735), (5, 4160902694), (10, 2080451347), (13, 1600347190), (17, 1223794910), (26, 800173595), (34, 611897455), (53, 392537990), (65, 320069438), (85, 244758982), (106, 196268995), (130, 160034719), (169, 123103630), (170, 122379491), (221, 94138070), (265, 78507598), (338, 61551815), (442, 47069035), (530, 39253799), (689, 30195230), (845, 24620726), (901, 23090470), (1051, 19794970), (1105, 18827614), (1378, 15097615), (1690, 12310363), (1802, 11545235), (2102, 9897485), (2197, 9469510), (2210, 9413807), (2873, 7241390), (3445, 6039046), (4394, 4734755), (4505, 4618094), (5255, 3958994), (5746, 3620695), (6890, 3019523), (8957, 2322710), (9010, 2309047), (10510, 1979497), (10985, 1893902), (11713, 1776190), (13663, 1522690), (14365, 1448278), (17867, 1164410), (17914, 1161355), (21970, 946951), (23426, 888095), (27326, 761345), (28730, 724139), (35734, 582205), (37349, 557030), (44785, 464542), (55703, 373490), (58565, 355238), (68315, 304538), (74698, 278515), (89335, 232882), (89570, 232271), (111406, 186745), (116441, 178670), (117130, 177619), (136630, 152269)]