87474780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{1097}}^1$

素因数の和:1555

約数の個数: 72

約数和(自身を含む): 266181552

約数和(自身を除く): 178706772

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 443, 886, 1097, 1329, 1772, 2194, 2215, 2658, 3291, 3987, 4388, 4430, 5316, 5485, 6582, 6645, 7974, 8860, 9873, 10970, 13164, 13290, 15948, 16455, 19746, 19935, 21940, 26580, 32910, 39492, 39870, 49365, 65820, 79740, 98730, 197460, 485971, 971942, 1457913, 1943884, 2429855, 2915826, 4373739, 4859710, 5831652, 7289565, 8747478, 9719420, 14579130, 17494956, 21868695, 29158260, 43737390, 87474780]

約数ペア:

[(1, 87474780), (2, 43737390), (3, 29158260), (4, 21868695), (5, 17494956), (6, 14579130), (9, 9719420), (10, 8747478), (12, 7289565), (15, 5831652), (18, 4859710), (20, 4373739), (30, 2915826), (36, 2429855), (45, 1943884), (60, 1457913), (90, 971942), (180, 485971), (443, 197460), (886, 98730), (1097, 79740), (1329, 65820), (1772, 49365), (2194, 39870), (2215, 39492), (2658, 32910), (3291, 26580), (3987, 21940), (4388, 19935), (4430, 19746), (5316, 16455), (5485, 15948), (6582, 13290), (6645, 13164), (7974, 10970), (8860, 9873)]