18765240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{523}}^1$

素因数の和:573

約数の個数: 128

約数和(自身を含む): 63383040

約数和(自身を除く): 44617800

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, 523, 552, 598, 690, 780, 897, 920, 1046, 1196, 1380, 1495, 1560, 1569, 1794, 2092, 2392, 2615, 2760, 2990, 3138, 3588, 4184, 4485, 5230, 5980, 6276, 6799, 7176, 7845, 8970, 10460, 11960, 12029, 12552, 13598, 15690, 17940, 20397, 20920, 24058, 27196, 31380, 33995, 35880, 36087, 40794, 48116, 54392, 60145, 62760, 67990, 72174, 81588, 96232, 101985, 120290, 135980, 144348, 156377, 163176, 180435, 203970, 240580, 271960, 288696, 312754, 360870, 407940, 469131, 481160, 625508, 721740, 781885, 815880, 938262, 1251016, 1443480, 1563770, 1876524, 2345655, 3127540, 3753048, 4691310, 6255080, 9382620, 18765240]

約数ペア:

[(1, 18765240), (2, 9382620), (3, 6255080), (4, 4691310), (5, 3753048), (6, 3127540), (8, 2345655), (10, 1876524), (12, 1563770), (13, 1443480), (15, 1251016), (20, 938262), (23, 815880), (24, 781885), (26, 721740), (30, 625508), (39, 481160), (40, 469131), (46, 407940), (52, 360870), (60, 312754), (65, 288696), (69, 271960), (78, 240580), (92, 203970), (104, 180435), (115, 163176), (120, 156377), (130, 144348), (138, 135980), (156, 120290), (184, 101985), (195, 96232), (230, 81588), (260, 72174), (276, 67990), (299, 62760), (312, 60145), (345, 54392), (390, 48116), (460, 40794), (520, 36087), (523, 35880), (552, 33995), (598, 31380), (690, 27196), (780, 24058), (897, 20920), (920, 20397), (1046, 17940), (1196, 15690), (1380, 13598), (1495, 12552), (1560, 12029), (1569, 11960), (1794, 10460), (2092, 8970), (2392, 7845), (2615, 7176), (2760, 6799), (2990, 6276), (3138, 5980), (3588, 5230), (4184, 4485)]