1811978870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{20897}}^1$

素因数の和:20969

約数の個数: 64

約数和(自身を含む): 3791733120

約数和(自身を除く): 1979754250

約数列:

[1, 2, 5, 10, 13, 23, 26, 29, 46, 58, 65, 115, 130, 145, 230, 290, 299, 377, 598, 667, 754, 1334, 1495, 1885, 2990, 3335, 3770, 6670, 8671, 17342, 20897, 41794, 43355, 86710, 104485, 208970, 271661, 480631, 543322, 606013, 961262, 1212026, 1358305, 2403155, 2716610, 3030065, 4806310, 6060130, 6248203, 7878169, 12496406, 13938299, 15756338, 27876598, 31241015, 39390845, 62482030, 69691495, 78781690, 139382990, 181197887, 362395774, 905989435, 1811978870]

約数ペア:

[(1, 1811978870), (2, 905989435), (5, 362395774), (10, 181197887), (13, 139382990), (23, 78781690), (26, 69691495), (29, 62482030), (46, 39390845), (58, 31241015), (65, 27876598), (115, 15756338), (130, 13938299), (145, 12496406), (230, 7878169), (290, 6248203), (299, 6060130), (377, 4806310), (598, 3030065), (667, 2716610), (754, 2403155), (1334, 1358305), (1495, 1212026), (1885, 961262), (2990, 606013), (3335, 543322), (3770, 480631), (6670, 271661), (8671, 208970), (17342, 104485), (20897, 86710), (41794, 43355)]