128761590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{1031}}^1$

素因数の和:1245

約数の個数: 64

約数和(自身を含む): 324559872

約数和(自身を除く): 195798282

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 181, 230, 345, 362, 543, 690, 905, 1031, 1086, 1810, 2062, 2715, 3093, 4163, 5155, 5430, 6186, 8326, 10310, 12489, 15465, 20815, 23713, 24978, 30930, 41630, 47426, 62445, 71139, 118565, 124890, 142278, 186611, 237130, 355695, 373222, 559833, 711390, 933055, 1119666, 1866110, 2799165, 4292053, 5598330, 8584106, 12876159, 21460265, 25752318, 42920530, 64380795, 128761590]

約数ペア:

[(1, 128761590), (2, 64380795), (3, 42920530), (5, 25752318), (6, 21460265), (10, 12876159), (15, 8584106), (23, 5598330), (30, 4292053), (46, 2799165), (69, 1866110), (115, 1119666), (138, 933055), (181, 711390), (230, 559833), (345, 373222), (362, 355695), (543, 237130), (690, 186611), (905, 142278), (1031, 124890), (1086, 118565), (1810, 71139), (2062, 62445), (2715, 47426), (3093, 41630), (4163, 30930), (5155, 24978), (5430, 23713), (6186, 20815), (8326, 15465), (10310, 12489)]