66881240

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{523}}^1$

素因数の和:696

約数の個数: 64

約数和(自身を含む): 158457600

約数和(自身を除く): 91576360

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 139, 184, 230, 278, 460, 523, 556, 695, 920, 1046, 1112, 1390, 2092, 2615, 2780, 3197, 4184, 5230, 5560, 6394, 10460, 12029, 12788, 15985, 20920, 24058, 25576, 31970, 48116, 60145, 63940, 72697, 96232, 120290, 127880, 145394, 240580, 290788, 363485, 481160, 581576, 726970, 1453940, 1672031, 2907880, 3344062, 6688124, 8360155, 13376248, 16720310, 33440620, 66881240]

約数ペア:

[(1, 66881240), (2, 33440620), (4, 16720310), (5, 13376248), (8, 8360155), (10, 6688124), (20, 3344062), (23, 2907880), (40, 1672031), (46, 1453940), (92, 726970), (115, 581576), (139, 481160), (184, 363485), (230, 290788), (278, 240580), (460, 145394), (523, 127880), (556, 120290), (695, 96232), (920, 72697), (1046, 63940), (1112, 60145), (1390, 48116), (2092, 31970), (2615, 25576), (2780, 24058), (3197, 20920), (4184, 15985), (5230, 12788), (5560, 12029), (6394, 10460)]