89908760

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{421}}^1$

素因数の和:732

約数の個数: 64

約数和(自身を含む): 214207200

約数和(自身を除く): 124298440

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 281, 380, 421, 562, 760, 842, 1124, 1405, 1684, 2105, 2248, 2810, 3368, 4210, 5339, 5620, 7999, 8420, 10678, 11240, 15998, 16840, 21356, 26695, 31996, 39995, 42712, 53390, 63992, 79990, 106780, 118301, 159980, 213560, 236602, 319960, 473204, 591505, 946408, 1183010, 2247719, 2366020, 4495438, 4732040, 8990876, 11238595, 17981752, 22477190, 44954380, 89908760]

約数ペア:

[(1, 89908760), (2, 44954380), (4, 22477190), (5, 17981752), (8, 11238595), (10, 8990876), (19, 4732040), (20, 4495438), (38, 2366020), (40, 2247719), (76, 1183010), (95, 946408), (152, 591505), (190, 473204), (281, 319960), (380, 236602), (421, 213560), (562, 159980), (760, 118301), (842, 106780), (1124, 79990), (1405, 63992), (1684, 53390), (2105, 42712), (2248, 39995), (2810, 31996), (3368, 26695), (4210, 21356), (5339, 16840), (5620, 15998), (7999, 11240), (8420, 10678)]