1640572720

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{151}}^1\times {\mathrm{2027}}^1$

素因数の和:2258

約数の個数: 80

約数和(自身を含む): 3898821888

約数和(自身を除く): 2258249168

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 151, 268, 302, 335, 536, 604, 670, 755, 1072, 1208, 1340, 1510, 2027, 2416, 2680, 3020, 4054, 5360, 6040, 8108, 10117, 10135, 12080, 16216, 20234, 20270, 32432, 40468, 40540, 50585, 80936, 81080, 101170, 135809, 161872, 162160, 202340, 271618, 306077, 404680, 543236, 612154, 679045, 809360, 1086472, 1224308, 1358090, 1530385, 2172944, 2448616, 2716180, 3060770, 4897232, 5432360, 6121540, 10864720, 12243080, 20507159, 24486160, 41014318, 82028636, 102535795, 164057272, 205071590, 328114544, 410143180, 820286360, 1640572720]

約数ペア:

[(1, 1640572720), (2, 820286360), (4, 410143180), (5, 328114544), (8, 205071590), (10, 164057272), (16, 102535795), (20, 82028636), (40, 41014318), (67, 24486160), (80, 20507159), (134, 12243080), (151, 10864720), (268, 6121540), (302, 5432360), (335, 4897232), (536, 3060770), (604, 2716180), (670, 2448616), (755, 2172944), (1072, 1530385), (1208, 1358090), (1340, 1224308), (1510, 1086472), (2027, 809360), (2416, 679045), (2680, 612154), (3020, 543236), (4054, 404680), (5360, 306077), (6040, 271618), (8108, 202340), (10117, 162160), (10135, 161872), (12080, 135809), (16216, 101170), (20234, 81080), (20270, 80936), (32432, 50585), (40468, 40540)]