261686340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{23833}}^1$

素因数の和:23909

約数の個数: 72

約数和(自身を含む): 806828568

約数和(自身を除く): 545142228

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1830, 2196, 2745, 3660, 5490, 10980, 23833, 47666, 71499, 95332, 119165, 142998, 214497, 238330, 285996, 357495, 428994, 476660, 714990, 857988, 1072485, 1429980, 1453813, 2144970, 2907626, 4289940, 4361439, 5815252, 7269065, 8722878, 13084317, 14538130, 17445756, 21807195, 26168634, 29076260, 43614390, 52337268, 65421585, 87228780, 130843170, 261686340]

約数ペア:

[(1, 261686340), (2, 130843170), (3, 87228780), (4, 65421585), (5, 52337268), (6, 43614390), (9, 29076260), (10, 26168634), (12, 21807195), (15, 17445756), (18, 14538130), (20, 13084317), (30, 8722878), (36, 7269065), (45, 5815252), (60, 4361439), (61, 4289940), (90, 2907626), (122, 2144970), (180, 1453813), (183, 1429980), (244, 1072485), (305, 857988), (366, 714990), (549, 476660), (610, 428994), (732, 357495), (915, 285996), (1098, 238330), (1220, 214497), (1830, 142998), (2196, 119165), (2745, 95332), (3660, 71499), (5490, 47666), (10980, 23833)]