18581663232020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{27509}}^1\times {\mathrm{689261}}^1$

素因数の和:716793

約数の個数: 72

約数和(自身を含む): 45394064702280

約数和(自身を除く): 26812401470260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 27509, 55018, 110036, 137545, 192563, 275090, 385126, 550180, 689261, 770252, 962815, 1347941, 1378522, 1925630, 2695882, 2757044, 3446305, 3851260, 4824827, 5391764, 6739705, 6892610, 9649654, 13479410, 13785220, 19299308, 24124135, 26958820, 33773789, 48248270, 67547578, 96496540, 135095156, 168868945, 337737890, 675475780, 18960880849, 37921761698, 75843523396, 94804404245, 132726165943, 189608808490, 265452331886, 379217616980, 530904663772, 663630829715, 929083161601, 1327261659430, 1858166323202, 2654523318860, 3716332646404, 4645415808005, 9290831616010, 18581663232020]

約数ペア:

[(1, 18581663232020), (2, 9290831616010), (4, 4645415808005), (5, 3716332646404), (7, 2654523318860), (10, 1858166323202), (14, 1327261659430), (20, 929083161601), (28, 663630829715), (35, 530904663772), (49, 379217616980), (70, 265452331886), (98, 189608808490), (140, 132726165943), (196, 94804404245), (245, 75843523396), (490, 37921761698), (980, 18960880849), (27509, 675475780), (55018, 337737890), (110036, 168868945), (137545, 135095156), (192563, 96496540), (275090, 67547578), (385126, 48248270), (550180, 33773789), (689261, 26958820), (770252, 24124135), (962815, 19299308), (1347941, 13785220), (1378522, 13479410), (1925630, 9649654), (2695882, 6892610), (2757044, 6739705), (3446305, 5391764), (3851260, 4824827)]