257890444

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:287

約数の個数: 96

約数和(自身を含む): 563834880

約数和(自身を除く): 305944436

約数列:

[1, 2, 4, 7, 14, 23, 28, 37, 46, 74, 79, 92, 137, 148, 158, 161, 259, 274, 316, 322, 518, 548, 553, 644, 851, 959, 1036, 1106, 1702, 1817, 1918, 2212, 2923, 3151, 3404, 3634, 3836, 5069, 5846, 5957, 6302, 7268, 10138, 10823, 11692, 11914, 12604, 12719, 20276, 20461, 21646, 22057, 23828, 25438, 35483, 40922, 43292, 44114, 50876, 67229, 70966, 75761, 81844, 88228, 116587, 134458, 141932, 151522, 233174, 248929, 268916, 303044, 400451, 466348, 470603, 497858, 800902, 816109, 941206, 995716, 1601804, 1632218, 1742503, 1882412, 2803157, 3264436, 3485006, 5606314, 6970012, 9210373, 11212628, 18420746, 36841492, 64472611, 128945222, 257890444]

約数ペア:

[(1, 257890444), (2, 128945222), (4, 64472611), (7, 36841492), (14, 18420746), (23, 11212628), (28, 9210373), (37, 6970012), (46, 5606314), (74, 3485006), (79, 3264436), (92, 2803157), (137, 1882412), (148, 1742503), (158, 1632218), (161, 1601804), (259, 995716), (274, 941206), (316, 816109), (322, 800902), (518, 497858), (548, 470603), (553, 466348), (644, 400451), (851, 303044), (959, 268916), (1036, 248929), (1106, 233174), (1702, 151522), (1817, 141932), (1918, 134458), (2212, 116587), (2923, 88228), (3151, 81844), (3404, 75761), (3634, 70966), (3836, 67229), (5069, 50876), (5846, 44114), (5957, 43292), (6302, 40922), (7268, 35483), (10138, 25438), (10823, 23828), (11692, 22057), (11914, 21646), (12604, 20461), (12719, 20276)]