199956780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{18211}}^1$

素因数の和:18287

約数の個数: 72

約数和(自身を含む): 616512624

約数和(自身を除く): 416555844

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, 18211, 36422, 54633, 72844, 91055, 109266, 163899, 182110, 218532, 273165, 327798, 364220, 546330, 655596, 819495, 1092660, 1110871, 1638990, 2221742, 3277980, 3332613, 4443484, 5554355, 6665226, 9997839, 11108710, 13330452, 16663065, 19995678, 22217420, 33326130, 39991356, 49989195, 66652260, 99978390, 199956780]

約数ペア:

[(1, 199956780), (2, 99978390), (3, 66652260), (4, 49989195), (5, 39991356), (6, 33326130), (9, 22217420), (10, 19995678), (12, 16663065), (15, 13330452), (18, 11108710), (20, 9997839), (30, 6665226), (36, 5554355), (45, 4443484), (60, 3332613), (61, 3277980), (90, 2221742), (122, 1638990), (180, 1110871), (183, 1092660), (244, 819495), (305, 655596), (366, 546330), (549, 364220), (610, 327798), (732, 273165), (915, 218532), (1098, 182110), (1220, 163899), (1830, 109266), (2196, 91055), (2745, 72844), (3660, 54633), (5490, 36422), (10980, 18211)]