28804970

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:239

約数の個数: 64

約数和(自身を含む): 58786560

約数和(自身を除く): 29981590

約数列:

[1, 2, 5, 10, 17, 23, 34, 46, 53, 85, 106, 115, 139, 170, 230, 265, 278, 391, 530, 695, 782, 901, 1219, 1390, 1802, 1955, 2363, 2438, 3197, 3910, 4505, 4726, 6095, 6394, 7367, 9010, 11815, 12190, 14734, 15985, 20723, 23630, 31970, 36835, 41446, 54349, 73670, 103615, 108698, 125239, 169441, 207230, 250478, 271745, 338882, 543490, 626195, 847205, 1252390, 1694410, 2880497, 5760994, 14402485, 28804970]

約数ペア:

[(1, 28804970), (2, 14402485), (5, 5760994), (10, 2880497), (17, 1694410), (23, 1252390), (34, 847205), (46, 626195), (53, 543490), (85, 338882), (106, 271745), (115, 250478), (139, 207230), (170, 169441), (230, 125239), (265, 108698), (278, 103615), (391, 73670), (530, 54349), (695, 41446), (782, 36835), (901, 31970), (1219, 23630), (1390, 20723), (1802, 15985), (1955, 14734), (2363, 12190), (2438, 11815), (3197, 9010), (3910, 7367), (4505, 6394), (4726, 6095)]