261569010

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{131}}^1$

素因数の和:304

約数の個数: 128

約数和(自身を含む): 693411840

約数和(自身を除く): 431842830

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 31, 38, 57, 62, 93, 95, 113, 114, 131, 155, 186, 190, 226, 262, 285, 310, 339, 393, 465, 565, 570, 589, 655, 678, 786, 930, 1130, 1178, 1310, 1695, 1767, 1965, 2147, 2489, 2945, 3390, 3503, 3534, 3930, 4061, 4294, 4978, 5890, 6441, 7006, 7467, 8122, 8835, 10509, 10735, 12183, 12445, 12882, 14803, 14934, 17515, 17670, 20305, 21018, 21470, 24366, 24890, 29606, 32205, 35030, 37335, 40610, 44409, 52545, 60915, 64410, 66557, 74015, 74670, 77159, 88818, 105090, 121830, 133114, 148030, 154318, 199671, 222045, 231477, 281257, 332785, 385795, 399342, 444090, 458893, 462954, 562514, 665570, 771590, 843771, 917786, 998355, 1157385, 1376679, 1406285, 1687542, 1996710, 2294465, 2314770, 2753358, 2812570, 4218855, 4588930, 6883395, 8437710, 8718967, 13766790, 17437934, 26156901, 43594835, 52313802, 87189670, 130784505, 261569010]

約数ペア:

[(1, 261569010), (2, 130784505), (3, 87189670), (5, 52313802), (6, 43594835), (10, 26156901), (15, 17437934), (19, 13766790), (30, 8718967), (31, 8437710), (38, 6883395), (57, 4588930), (62, 4218855), (93, 2812570), (95, 2753358), (113, 2314770), (114, 2294465), (131, 1996710), (155, 1687542), (186, 1406285), (190, 1376679), (226, 1157385), (262, 998355), (285, 917786), (310, 843771), (339, 771590), (393, 665570), (465, 562514), (565, 462954), (570, 458893), (589, 444090), (655, 399342), (678, 385795), (786, 332785), (930, 281257), (1130, 231477), (1178, 222045), (1310, 199671), (1695, 154318), (1767, 148030), (1965, 133114), (2147, 121830), (2489, 105090), (2945, 88818), (3390, 77159), (3503, 74670), (3534, 74015), (3930, 66557), (4061, 64410), (4294, 60915), (4978, 52545), (5890, 44409), (6441, 40610), (7006, 37335), (7467, 35030), (8122, 32205), (8835, 29606), (10509, 24890), (10735, 24366), (12183, 21470), (12445, 21018), (12882, 20305), (14803, 17670), (14934, 17515)]