80309960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{421}}^1$

素因数の和:702

約数の個数: 64

約数和(自身を含む): 191419200

約数和(自身を除く): 111109240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 251, 380, 421, 502, 760, 842, 1004, 1255, 1684, 2008, 2105, 2510, 3368, 4210, 4769, 5020, 7999, 8420, 9538, 10040, 15998, 16840, 19076, 23845, 31996, 38152, 39995, 47690, 63992, 79990, 95380, 105671, 159980, 190760, 211342, 319960, 422684, 528355, 845368, 1056710, 2007749, 2113420, 4015498, 4226840, 8030996, 10038745, 16061992, 20077490, 40154980, 80309960]

約数ペア:

[(1, 80309960), (2, 40154980), (4, 20077490), (5, 16061992), (8, 10038745), (10, 8030996), (19, 4226840), (20, 4015498), (38, 2113420), (40, 2007749), (76, 1056710), (95, 845368), (152, 528355), (190, 422684), (251, 319960), (380, 211342), (421, 190760), (502, 159980), (760, 105671), (842, 95380), (1004, 79990), (1255, 63992), (1684, 47690), (2008, 39995), (2105, 38152), (2510, 31996), (3368, 23845), (4210, 19076), (4769, 16840), (5020, 15998), (7999, 10040), (8420, 9538)]