8389940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^2\times {\mathrm{61}}^1$

素因数の和:129

約数の個数: 72

約数和(自身を含む): 20160168

約数和(自身を除く): 11770228

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 61, 65, 92, 115, 122, 130, 230, 244, 260, 299, 305, 460, 529, 598, 610, 793, 1058, 1196, 1220, 1403, 1495, 1586, 2116, 2645, 2806, 2990, 3172, 3965, 5290, 5612, 5980, 6877, 7015, 7930, 10580, 13754, 14030, 15860, 18239, 27508, 28060, 32269, 34385, 36478, 64538, 68770, 72956, 91195, 129076, 137540, 161345, 182390, 322690, 364780, 419497, 645380, 838994, 1677988, 2097485, 4194970, 8389940]

約数ペア:

[(1, 8389940), (2, 4194970), (4, 2097485), (5, 1677988), (10, 838994), (13, 645380), (20, 419497), (23, 364780), (26, 322690), (46, 182390), (52, 161345), (61, 137540), (65, 129076), (92, 91195), (115, 72956), (122, 68770), (130, 64538), (230, 36478), (244, 34385), (260, 32269), (299, 28060), (305, 27508), (460, 18239), (529, 15860), (598, 14030), (610, 13754), (793, 10580), (1058, 7930), (1196, 7015), (1220, 6877), (1403, 5980), (1495, 5612), (1586, 5290), (2116, 3965), (2645, 3172), (2806, 2990)]