261139560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{1093}}^1$

素因数の和:1299

約数の個数: 128

約数和(自身を含む): 860146560

約数和(自身を除く): 599007000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 181, 220, 264, 330, 362, 440, 543, 660, 724, 905, 1086, 1093, 1320, 1448, 1810, 1991, 2172, 2186, 2715, 3279, 3620, 3982, 4344, 4372, 5430, 5465, 5973, 6558, 7240, 7964, 8744, 9955, 10860, 10930, 11946, 12023, 13116, 15928, 16395, 19910, 21720, 21860, 23892, 24046, 26232, 29865, 32790, 36069, 39820, 43720, 47784, 48092, 59730, 60115, 65580, 72138, 79640, 96184, 119460, 120230, 131160, 144276, 180345, 197833, 238920, 240460, 288552, 360690, 395666, 480920, 593499, 721380, 791332, 989165, 1186998, 1442760, 1582664, 1978330, 2176163, 2373996, 2967495, 3956660, 4352326, 4747992, 5934990, 6528489, 7913320, 8704652, 10880815, 11869980, 13056978, 17409304, 21761630, 23739960, 26113956, 32642445, 43523260, 52227912, 65284890, 87046520, 130569780, 261139560]

約数ペア:

[(1, 261139560), (2, 130569780), (3, 87046520), (4, 65284890), (5, 52227912), (6, 43523260), (8, 32642445), (10, 26113956), (11, 23739960), (12, 21761630), (15, 17409304), (20, 13056978), (22, 11869980), (24, 10880815), (30, 8704652), (33, 7913320), (40, 6528489), (44, 5934990), (55, 4747992), (60, 4352326), (66, 3956660), (88, 2967495), (110, 2373996), (120, 2176163), (132, 1978330), (165, 1582664), (181, 1442760), (220, 1186998), (264, 989165), (330, 791332), (362, 721380), (440, 593499), (543, 480920), (660, 395666), (724, 360690), (905, 288552), (1086, 240460), (1093, 238920), (1320, 197833), (1448, 180345), (1810, 144276), (1991, 131160), (2172, 120230), (2186, 119460), (2715, 96184), (3279, 79640), (3620, 72138), (3982, 65580), (4344, 60115), (4372, 59730), (5430, 48092), (5465, 47784), (5973, 43720), (6558, 39820), (7240, 36069), (7964, 32790), (8744, 29865), (9955, 26232), (10860, 24046), (10930, 23892), (11946, 21860), (12023, 21720), (13116, 19910), (15928, 16395)]