257993160

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{311}}^1$

素因数の和:579

約数の個数: 128

約数和(自身を含む): 805109760

約数和(自身を除く): 547116600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 155, 186, 223, 248, 310, 311, 372, 446, 465, 620, 622, 669, 744, 892, 930, 933, 1115, 1240, 1244, 1338, 1555, 1784, 1860, 1866, 2230, 2488, 2676, 3110, 3345, 3720, 3732, 4460, 4665, 5352, 6220, 6690, 6913, 7464, 8920, 9330, 9641, 12440, 13380, 13826, 18660, 19282, 20739, 26760, 27652, 28923, 34565, 37320, 38564, 41478, 48205, 55304, 57846, 69130, 69353, 77128, 82956, 96410, 103695, 115692, 138260, 138706, 144615, 165912, 192820, 207390, 208059, 231384, 276520, 277412, 289230, 346765, 385640, 414780, 416118, 554824, 578460, 693530, 829560, 832236, 1040295, 1156920, 1387060, 1664472, 2080590, 2149943, 2774120, 4161180, 4299886, 6449829, 8322360, 8599772, 10749715, 12899658, 17199544, 21499430, 25799316, 32249145, 42998860, 51598632, 64498290, 85997720, 128996580, 257993160]

約数ペア:

[(1, 257993160), (2, 128996580), (3, 85997720), (4, 64498290), (5, 51598632), (6, 42998860), (8, 32249145), (10, 25799316), (12, 21499430), (15, 17199544), (20, 12899658), (24, 10749715), (30, 8599772), (31, 8322360), (40, 6449829), (60, 4299886), (62, 4161180), (93, 2774120), (120, 2149943), (124, 2080590), (155, 1664472), (186, 1387060), (223, 1156920), (248, 1040295), (310, 832236), (311, 829560), (372, 693530), (446, 578460), (465, 554824), (620, 416118), (622, 414780), (669, 385640), (744, 346765), (892, 289230), (930, 277412), (933, 276520), (1115, 231384), (1240, 208059), (1244, 207390), (1338, 192820), (1555, 165912), (1784, 144615), (1860, 138706), (1866, 138260), (2230, 115692), (2488, 103695), (2676, 96410), (3110, 82956), (3345, 77128), (3720, 69353), (3732, 69130), (4460, 57846), (4665, 55304), (5352, 48205), (6220, 41478), (6690, 38564), (6913, 37320), (7464, 34565), (8920, 28923), (9330, 27652), (9641, 26760), (12440, 20739), (13380, 19282), (13826, 18660)]