77451640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{8923}}^1$

素因数の和:8972

約数の個数: 64

約数和(自身を含む): 205608960

約数和(自身を除く): 128157320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 8923, 17846, 35692, 44615, 62461, 71384, 89230, 124922, 178460, 249844, 276613, 312305, 356920, 499688, 553226, 624610, 1106452, 1249220, 1383065, 1936291, 2212904, 2498440, 2766130, 3872582, 5532260, 7745164, 9681455, 11064520, 15490328, 19362910, 38725820, 77451640]

約数ペア:

[(1, 77451640), (2, 38725820), (4, 19362910), (5, 15490328), (7, 11064520), (8, 9681455), (10, 7745164), (14, 5532260), (20, 3872582), (28, 2766130), (31, 2498440), (35, 2212904), (40, 1936291), (56, 1383065), (62, 1249220), (70, 1106452), (124, 624610), (140, 553226), (155, 499688), (217, 356920), (248, 312305), (280, 276613), (310, 249844), (434, 178460), (620, 124922), (868, 89230), (1085, 71384), (1240, 62461), (1736, 44615), (2170, 35692), (4340, 17846), (8680, 8923)]