161516680

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23893}}^1$

素因数の和:23930

約数の個数: 48

約数和(自身を含む): 393534180

約数和(自身を除く): 232017500

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 3380, 6760, 23893, 47786, 95572, 119465, 191144, 238930, 310609, 477860, 621218, 955720, 1242436, 1553045, 2484872, 3106090, 4037917, 6212180, 8075834, 12424360, 16151668, 20189585, 32303336, 40379170, 80758340, 161516680]

約数ペア:

[(1, 161516680), (2, 80758340), (4, 40379170), (5, 32303336), (8, 20189585), (10, 16151668), (13, 12424360), (20, 8075834), (26, 6212180), (40, 4037917), (52, 3106090), (65, 2484872), (104, 1553045), (130, 1242436), (169, 955720), (260, 621218), (338, 477860), (520, 310609), (676, 238930), (845, 191144), (1352, 119465), (1690, 95572), (3380, 47786), (6760, 23893)]