278994140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{35677}}^1$

素因数の和:35726

約数の個数: 48

約数和(自身を含む): 647341632

約数和(自身を除く): 368347492

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 85, 92, 115, 170, 230, 340, 391, 460, 782, 1564, 1955, 3910, 7820, 35677, 71354, 142708, 178385, 356770, 606509, 713540, 820571, 1213018, 1641142, 2426036, 3032545, 3282284, 4102855, 6065090, 8205710, 12130180, 13949707, 16411420, 27899414, 55798828, 69748535, 139497070, 278994140]

約数ペア:

[(1, 278994140), (2, 139497070), (4, 69748535), (5, 55798828), (10, 27899414), (17, 16411420), (20, 13949707), (23, 12130180), (34, 8205710), (46, 6065090), (68, 4102855), (85, 3282284), (92, 3032545), (115, 2426036), (170, 1641142), (230, 1213018), (340, 820571), (391, 713540), (460, 606509), (782, 356770), (1564, 178385), (1955, 142708), (3910, 71354), (7820, 35677)]