121215920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{233}}^1\times {\mathrm{929}}^1$

素因数の和:1182

約数の個数: 80

約数和(自身を含む): 323818560

約数和(自身を除く): 202602640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 233, 280, 466, 560, 929, 932, 1165, 1631, 1858, 1864, 2330, 3262, 3716, 3728, 4645, 4660, 6503, 6524, 7432, 8155, 9290, 9320, 13006, 13048, 14864, 16310, 18580, 18640, 26012, 26096, 32515, 32620, 37160, 52024, 65030, 65240, 74320, 104048, 130060, 130480, 216457, 260120, 432914, 520240, 865828, 1082285, 1515199, 1731656, 2164570, 3030398, 3463312, 4329140, 6060796, 7575995, 8658280, 12121592, 15151990, 17316560, 24243184, 30303980, 60607960, 121215920]

約数ペア:

[(1, 121215920), (2, 60607960), (4, 30303980), (5, 24243184), (7, 17316560), (8, 15151990), (10, 12121592), (14, 8658280), (16, 7575995), (20, 6060796), (28, 4329140), (35, 3463312), (40, 3030398), (56, 2164570), (70, 1731656), (80, 1515199), (112, 1082285), (140, 865828), (233, 520240), (280, 432914), (466, 260120), (560, 216457), (929, 130480), (932, 130060), (1165, 104048), (1631, 74320), (1858, 65240), (1864, 65030), (2330, 52024), (3262, 37160), (3716, 32620), (3728, 32515), (4645, 26096), (4660, 26012), (6503, 18640), (6524, 18580), (7432, 16310), (8155, 14864), (9290, 13048), (9320, 13006)]