15301780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{257}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 34891920

約数和(自身を除く): 19590140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 229, 257, 260, 458, 514, 916, 1028, 1145, 1285, 2290, 2570, 2977, 3341, 4580, 5140, 5954, 6682, 11908, 13364, 14885, 16705, 29770, 33410, 58853, 59540, 66820, 117706, 235412, 294265, 588530, 765089, 1177060, 1530178, 3060356, 3825445, 7650890, 15301780]

約数ペア:

[(1, 15301780), (2, 7650890), (4, 3825445), (5, 3060356), (10, 1530178), (13, 1177060), (20, 765089), (26, 588530), (52, 294265), (65, 235412), (130, 117706), (229, 66820), (257, 59540), (260, 58853), (458, 33410), (514, 29770), (916, 16705), (1028, 14885), (1145, 13364), (1285, 11908), (2290, 6682), (2570, 5954), (2977, 5140), (3341, 4580)]