642381840

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{99133}}^1$

素因数の和:99158

約数の個数: 100

約数和(自身を含む): 2231109804

約数和(自身を除く): 1588727964

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 270, 324, 360, 405, 432, 540, 648, 720, 810, 1080, 1296, 1620, 2160, 3240, 6480, 99133, 198266, 297399, 396532, 495665, 594798, 793064, 892197, 991330, 1189596, 1486995, 1586128, 1784394, 1982660, 2379192, 2676591, 2973990, 3568788, 3965320, 4460985, 4758384, 5353182, 5947980, 7137576, 7930640, 8029773, 8921970, 10706364, 11895960, 13382955, 14275152, 16059546, 17843940, 21412728, 23791920, 26765910, 32119092, 35687880, 40148865, 42825456, 53531820, 64238184, 71375760, 80297730, 107063640, 128476368, 160595460, 214127280, 321190920, 642381840]

約数ペア:

[(1, 642381840), (2, 321190920), (3, 214127280), (4, 160595460), (5, 128476368), (6, 107063640), (8, 80297730), (9, 71375760), (10, 64238184), (12, 53531820), (15, 42825456), (16, 40148865), (18, 35687880), (20, 32119092), (24, 26765910), (27, 23791920), (30, 21412728), (36, 17843940), (40, 16059546), (45, 14275152), (48, 13382955), (54, 11895960), (60, 10706364), (72, 8921970), (80, 8029773), (81, 7930640), (90, 7137576), (108, 5947980), (120, 5353182), (135, 4758384), (144, 4460985), (162, 3965320), (180, 3568788), (216, 2973990), (240, 2676591), (270, 2379192), (324, 1982660), (360, 1784394), (405, 1586128), (432, 1486995), (540, 1189596), (648, 991330), (720, 892197), (810, 793064), (1080, 594798), (1296, 495665), (1620, 396532), (2160, 297399), (3240, 198266), (6480, 99133)]