28684780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{353}}^1$

素因数の和:618

約数の個数: 48

約数和(自身を含む): 64229760

約数和(自身を除く): 35544980

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 239, 340, 353, 478, 706, 956, 1195, 1412, 1765, 2390, 3530, 4063, 4780, 6001, 7060, 8126, 12002, 16252, 20315, 24004, 30005, 40630, 60010, 81260, 84367, 120020, 168734, 337468, 421835, 843670, 1434239, 1687340, 2868478, 5736956, 7171195, 14342390, 28684780]

約数ペア:

[(1, 28684780), (2, 14342390), (4, 7171195), (5, 5736956), (10, 2868478), (17, 1687340), (20, 1434239), (34, 843670), (68, 421835), (85, 337468), (170, 168734), (239, 120020), (340, 84367), (353, 81260), (478, 60010), (706, 40630), (956, 30005), (1195, 24004), (1412, 20315), (1765, 16252), (2390, 12002), (3530, 8126), (4063, 7060), (4780, 6001)]