251816920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{547}}^1\times {\mathrm{677}}^1$

素因数の和:1252

約数の個数: 64

約数和(自身を含む): 601901280

約数和(自身を除く): 350084360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 547, 677, 680, 1094, 1354, 2188, 2708, 2735, 3385, 4376, 5416, 5470, 6770, 9299, 10940, 11509, 13540, 18598, 21880, 23018, 27080, 37196, 46036, 46495, 57545, 74392, 92072, 92990, 115090, 185980, 230180, 370319, 371960, 460360, 740638, 1481276, 1851595, 2962552, 3703190, 6295423, 7406380, 12590846, 14812760, 25181692, 31477115, 50363384, 62954230, 125908460, 251816920]

約数ペア:

[(1, 251816920), (2, 125908460), (4, 62954230), (5, 50363384), (8, 31477115), (10, 25181692), (17, 14812760), (20, 12590846), (34, 7406380), (40, 6295423), (68, 3703190), (85, 2962552), (136, 1851595), (170, 1481276), (340, 740638), (547, 460360), (677, 371960), (680, 370319), (1094, 230180), (1354, 185980), (2188, 115090), (2708, 92990), (2735, 92072), (3385, 74392), (4376, 57545), (5416, 46495), (5470, 46036), (6770, 37196), (9299, 27080), (10940, 23018), (11509, 21880), (13540, 18598)]