28478710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 58060800

約数和(自身を除く): 29582090

約数列:

[1, 2, 5, 10, 13, 26, 47, 59, 65, 79, 94, 118, 130, 158, 235, 295, 395, 470, 590, 611, 767, 790, 1027, 1222, 1534, 2054, 2773, 3055, 3713, 3835, 4661, 5135, 5546, 6110, 7426, 7670, 9322, 10270, 13865, 18565, 23305, 27730, 36049, 37130, 46610, 48269, 60593, 72098, 96538, 121186, 180245, 219067, 241345, 302965, 360490, 438134, 482690, 605930, 1095335, 2190670, 2847871, 5695742, 14239355, 28478710]

約数ペア:

[(1, 28478710), (2, 14239355), (5, 5695742), (10, 2847871), (13, 2190670), (26, 1095335), (47, 605930), (59, 482690), (65, 438134), (79, 360490), (94, 302965), (118, 241345), (130, 219067), (158, 180245), (235, 121186), (295, 96538), (395, 72098), (470, 60593), (590, 48269), (611, 46610), (767, 37130), (790, 36049), (1027, 27730), (1222, 23305), (1534, 18565), (2054, 13865), (2773, 10270), (3055, 9322), (3713, 7670), (3835, 7426), (4661, 6110), (5135, 5546)]