28776020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{163}}^1$

素因数の和:289

約数の個数: 96

約数和(自身を含む): 75602688

約数和(自身を除く): 46826668

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 97, 130, 140, 163, 182, 194, 260, 326, 364, 388, 455, 485, 652, 679, 815, 910, 970, 1141, 1261, 1358, 1630, 1820, 1940, 2119, 2282, 2522, 2716, 3260, 3395, 4238, 4564, 5044, 5705, 6305, 6790, 8476, 8827, 10595, 11410, 12610, 13580, 14833, 15811, 17654, 21190, 22820, 25220, 29666, 31622, 35308, 42380, 44135, 59332, 63244, 74165, 79055, 88270, 110677, 148330, 158110, 176540, 205543, 221354, 296660, 316220, 411086, 442708, 553385, 822172, 1027715, 1106770, 1438801, 2055430, 2213540, 2877602, 4110860, 5755204, 7194005, 14388010, 28776020]

約数ペア:

[(1, 28776020), (2, 14388010), (4, 7194005), (5, 5755204), (7, 4110860), (10, 2877602), (13, 2213540), (14, 2055430), (20, 1438801), (26, 1106770), (28, 1027715), (35, 822172), (52, 553385), (65, 442708), (70, 411086), (91, 316220), (97, 296660), (130, 221354), (140, 205543), (163, 176540), (182, 158110), (194, 148330), (260, 110677), (326, 88270), (364, 79055), (388, 74165), (455, 63244), (485, 59332), (652, 44135), (679, 42380), (815, 35308), (910, 31622), (970, 29666), (1141, 25220), (1261, 22820), (1358, 21190), (1630, 17654), (1820, 15811), (1940, 14833), (2119, 13580), (2282, 12610), (2522, 11410), (2716, 10595), (3260, 8827), (3395, 8476), (4238, 6790), (4564, 6305), (5044, 5705)]