119979920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{479}}^1$

素因数の和:624

約数の個数: 80

約数和(自身を含む): 291409920

約数和(自身を除く): 171430000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 101, 124, 155, 202, 248, 310, 404, 479, 496, 505, 620, 808, 958, 1010, 1240, 1616, 1916, 2020, 2395, 2480, 3131, 3832, 4040, 4790, 6262, 7664, 8080, 9580, 12524, 14849, 15655, 19160, 25048, 29698, 31310, 38320, 48379, 50096, 59396, 62620, 74245, 96758, 118792, 125240, 148490, 193516, 237584, 241895, 250480, 296980, 387032, 483790, 593960, 774064, 967580, 1187920, 1499749, 1935160, 2999498, 3870320, 5998996, 7498745, 11997992, 14997490, 23995984, 29994980, 59989960, 119979920]

約数ペア:

[(1, 119979920), (2, 59989960), (4, 29994980), (5, 23995984), (8, 14997490), (10, 11997992), (16, 7498745), (20, 5998996), (31, 3870320), (40, 2999498), (62, 1935160), (80, 1499749), (101, 1187920), (124, 967580), (155, 774064), (202, 593960), (248, 483790), (310, 387032), (404, 296980), (479, 250480), (496, 241895), (505, 237584), (620, 193516), (808, 148490), (958, 125240), (1010, 118792), (1240, 96758), (1616, 74245), (1916, 62620), (2020, 59396), (2395, 50096), (2480, 48379), (3131, 38320), (3832, 31310), (4040, 29698), (4790, 25048), (6262, 19160), (7664, 15655), (8080, 14849), (9580, 12524)]