28237560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{787}}^1$

素因数の和:837

約数の個数: 128

約数和(自身を含む): 95316480

約数和(自身を除く): 67078920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 23, 24, 26, 30, 39, 40, 46, 52, 60, 65, 69, 78, 92, 104, 115, 120, 130, 138, 156, 184, 195, 230, 260, 276, 299, 312, 345, 390, 460, 520, 552, 598, 690, 780, 787, 897, 920, 1196, 1380, 1495, 1560, 1574, 1794, 2361, 2392, 2760, 2990, 3148, 3588, 3935, 4485, 4722, 5980, 6296, 7176, 7870, 8970, 9444, 10231, 11805, 11960, 15740, 17940, 18101, 18888, 20462, 23610, 30693, 31480, 35880, 36202, 40924, 47220, 51155, 54303, 61386, 72404, 81848, 90505, 94440, 102310, 108606, 122772, 144808, 153465, 181010, 204620, 217212, 235313, 245544, 271515, 306930, 362020, 409240, 434424, 470626, 543030, 613860, 705939, 724040, 941252, 1086060, 1176565, 1227720, 1411878, 1882504, 2172120, 2353130, 2823756, 3529695, 4706260, 5647512, 7059390, 9412520, 14118780, 28237560]

約数ペア:

[(1, 28237560), (2, 14118780), (3, 9412520), (4, 7059390), (5, 5647512), (6, 4706260), (8, 3529695), (10, 2823756), (12, 2353130), (13, 2172120), (15, 1882504), (20, 1411878), (23, 1227720), (24, 1176565), (26, 1086060), (30, 941252), (39, 724040), (40, 705939), (46, 613860), (52, 543030), (60, 470626), (65, 434424), (69, 409240), (78, 362020), (92, 306930), (104, 271515), (115, 245544), (120, 235313), (130, 217212), (138, 204620), (156, 181010), (184, 153465), (195, 144808), (230, 122772), (260, 108606), (276, 102310), (299, 94440), (312, 90505), (345, 81848), (390, 72404), (460, 61386), (520, 54303), (552, 51155), (598, 47220), (690, 40924), (780, 36202), (787, 35880), (897, 31480), (920, 30693), (1196, 23610), (1380, 20462), (1495, 18888), (1560, 18101), (1574, 17940), (1794, 15740), (2361, 11960), (2392, 11805), (2760, 10231), (2990, 9444), (3148, 8970), (3588, 7870), (3935, 7176), (4485, 6296), (4722, 5980)]