28376315

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:164

約数の個数: 48

約数和(自身を含む): 41368320

約数和(自身を除く): 12992005

約数列:

[1, 5, 11, 17, 31, 55, 85, 89, 121, 155, 187, 341, 445, 527, 605, 935, 979, 1513, 1705, 2057, 2635, 2759, 3751, 4895, 5797, 7565, 10285, 10769, 13795, 16643, 18755, 28985, 30349, 46903, 53845, 63767, 83215, 151745, 183073, 234515, 318835, 333839, 515933, 915365, 1669195, 2579665, 5675263, 28376315]

約数ペア:

[(1, 28376315), (5, 5675263), (11, 2579665), (17, 1669195), (31, 915365), (55, 515933), (85, 333839), (89, 318835), (121, 234515), (155, 183073), (187, 151745), (341, 83215), (445, 63767), (527, 53845), (605, 46903), (935, 30349), (979, 28985), (1513, 18755), (1705, 16643), (2057, 13795), (2635, 10769), (2759, 10285), (3751, 7565), (4895, 5797)]