261219690

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{47581}}^1$

素因数の和:47655

約数の個数: 48

約数和(自身を含む): 690319656

約数和(自身を除く): 429099966

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 61, 90, 122, 183, 305, 366, 549, 610, 915, 1098, 1830, 2745, 5490, 47581, 95162, 142743, 237905, 285486, 428229, 475810, 713715, 856458, 1427430, 2141145, 2902441, 4282290, 5804882, 8707323, 14512205, 17414646, 26121969, 29024410, 43536615, 52243938, 87073230, 130609845, 261219690]

約数ペア:

[(1, 261219690), (2, 130609845), (3, 87073230), (5, 52243938), (6, 43536615), (9, 29024410), (10, 26121969), (15, 17414646), (18, 14512205), (30, 8707323), (45, 5804882), (61, 4282290), (90, 2902441), (122, 2141145), (183, 1427430), (305, 856458), (366, 713715), (549, 475810), (610, 428229), (915, 285486), (1098, 237905), (1830, 142743), (2745, 95162), (5490, 47581)]