81537660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{6761}}^1$

素因数の和:6843

約数の個数: 72

約数和(自身を含む): 251059536

約数和(自身を除く): 169521876

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 67, 90, 134, 180, 201, 268, 335, 402, 603, 670, 804, 1005, 1206, 1340, 2010, 2412, 3015, 4020, 6030, 6761, 12060, 13522, 20283, 27044, 33805, 40566, 60849, 67610, 81132, 101415, 121698, 135220, 202830, 243396, 304245, 405660, 452987, 608490, 905974, 1216980, 1358961, 1811948, 2264935, 2717922, 4076883, 4529870, 5435844, 6794805, 8153766, 9059740, 13589610, 16307532, 20384415, 27179220, 40768830, 81537660]

約数ペア:

[(1, 81537660), (2, 40768830), (3, 27179220), (4, 20384415), (5, 16307532), (6, 13589610), (9, 9059740), (10, 8153766), (12, 6794805), (15, 5435844), (18, 4529870), (20, 4076883), (30, 2717922), (36, 2264935), (45, 1811948), (60, 1358961), (67, 1216980), (90, 905974), (134, 608490), (180, 452987), (201, 405660), (268, 304245), (335, 243396), (402, 202830), (603, 135220), (670, 121698), (804, 101415), (1005, 81132), (1206, 67610), (1340, 60849), (2010, 40566), (2412, 33805), (3015, 27044), (4020, 20283), (6030, 13522), (6761, 12060)]