20804927624

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{983}}^1\times {\mathrm{11971}}^1$

素因数の和:12990

約数の個数: 64

約数和(自身を含む): 44530093440

約数和(自身を除く): 23725165816

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 983, 1768, 1966, 3932, 7864, 11971, 12779, 16711, 23942, 25558, 33422, 47884, 51116, 66844, 95768, 102232, 133688, 155623, 203507, 217243, 311246, 407014, 434486, 622492, 814028, 868972, 1244984, 1628056, 1737944, 2645591, 5291182, 10582364, 11767493, 21164728, 23534986, 47069972, 94139944, 152977409, 200047381, 305954818, 400094762, 611909636, 800189524, 1223819272, 1600379048, 2600615953, 5201231906, 10402463812, 20804927624]

約数ペア:

[(1, 20804927624), (2, 10402463812), (4, 5201231906), (8, 2600615953), (13, 1600379048), (17, 1223819272), (26, 800189524), (34, 611909636), (52, 400094762), (68, 305954818), (104, 200047381), (136, 152977409), (221, 94139944), (442, 47069972), (884, 23534986), (983, 21164728), (1768, 11767493), (1966, 10582364), (3932, 5291182), (7864, 2645591), (11971, 1737944), (12779, 1628056), (16711, 1244984), (23942, 868972), (25558, 814028), (33422, 622492), (47884, 434486), (51116, 407014), (66844, 311246), (95768, 217243), (102232, 203507), (133688, 155623)]