20540790

素因数分解:

$2^1\times 3^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1$

素因数の和:208

約数の個数: 96

約数和(自身を含む): 56609280

約数和(自身を除く): 36068490

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 79, 81, 90, 107, 135, 158, 162, 214, 237, 243, 270, 321, 395, 405, 474, 486, 535, 642, 711, 790, 810, 963, 1070, 1185, 1215, 1422, 1605, 1926, 2133, 2370, 2430, 2889, 3210, 3555, 4266, 4815, 5778, 6399, 7110, 8453, 8667, 9630, 10665, 12798, 14445, 16906, 17334, 19197, 21330, 25359, 26001, 28890, 31995, 38394, 42265, 43335, 50718, 52002, 63990, 76077, 84530, 86670, 95985, 126795, 130005, 152154, 191970, 228231, 253590, 260010, 380385, 456462, 684693, 760770, 1141155, 1369386, 2054079, 2282310, 3423465, 4108158, 6846930, 10270395, 20540790]

約数ペア:

[(1, 20540790), (2, 10270395), (3, 6846930), (5, 4108158), (6, 3423465), (9, 2282310), (10, 2054079), (15, 1369386), (18, 1141155), (27, 760770), (30, 684693), (45, 456462), (54, 380385), (79, 260010), (81, 253590), (90, 228231), (107, 191970), (135, 152154), (158, 130005), (162, 126795), (214, 95985), (237, 86670), (243, 84530), (270, 76077), (321, 63990), (395, 52002), (405, 50718), (474, 43335), (486, 42265), (535, 38394), (642, 31995), (711, 28890), (790, 26001), (810, 25359), (963, 21330), (1070, 19197), (1185, 17334), (1215, 16906), (1422, 14445), (1605, 12798), (1926, 10665), (2133, 9630), (2370, 8667), (2430, 8453), (2889, 7110), (3210, 6399), (3555, 5778), (4266, 4815)]