161971590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:346

約数の個数: 128

約数和(自身を含む): 445906944

約数和(自身を除く): 283935354

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 31, 33, 55, 62, 66, 71, 93, 110, 142, 155, 165, 186, 213, 223, 310, 330, 341, 355, 426, 446, 465, 669, 682, 710, 781, 930, 1023, 1065, 1115, 1338, 1562, 1705, 2046, 2130, 2201, 2230, 2343, 2453, 3345, 3410, 3905, 4402, 4686, 4906, 5115, 6603, 6690, 6913, 7359, 7810, 10230, 11005, 11715, 12265, 13206, 13826, 14718, 15833, 20739, 22010, 23430, 24211, 24530, 31666, 33015, 34565, 36795, 41478, 47499, 48422, 66030, 69130, 72633, 73590, 76043, 79165, 94998, 103695, 121055, 145266, 152086, 158330, 174163, 207390, 228129, 237495, 242110, 348326, 363165, 380215, 456258, 474990, 490823, 522489, 726330, 760430, 870815, 981646, 1044978, 1140645, 1472469, 1741630, 2281290, 2454115, 2612445, 2944938, 4908230, 5224890, 5399053, 7362345, 10798106, 14724690, 16197159, 26995265, 32394318, 53990530, 80985795, 161971590]

約数ペア:

[(1, 161971590), (2, 80985795), (3, 53990530), (5, 32394318), (6, 26995265), (10, 16197159), (11, 14724690), (15, 10798106), (22, 7362345), (30, 5399053), (31, 5224890), (33, 4908230), (55, 2944938), (62, 2612445), (66, 2454115), (71, 2281290), (93, 1741630), (110, 1472469), (142, 1140645), (155, 1044978), (165, 981646), (186, 870815), (213, 760430), (223, 726330), (310, 522489), (330, 490823), (341, 474990), (355, 456258), (426, 380215), (446, 363165), (465, 348326), (669, 242110), (682, 237495), (710, 228129), (781, 207390), (930, 174163), (1023, 158330), (1065, 152086), (1115, 145266), (1338, 121055), (1562, 103695), (1705, 94998), (2046, 79165), (2130, 76043), (2201, 73590), (2230, 72633), (2343, 69130), (2453, 66030), (3345, 48422), (3410, 47499), (3905, 41478), (4402, 36795), (4686, 34565), (4906, 33015), (5115, 31666), (6603, 24530), (6690, 24211), (6913, 23430), (7359, 22010), (7810, 20739), (10230, 15833), (11005, 14718), (11715, 13826), (12265, 13206)]