25001055

素因数分解:

$3^6\times 5^1\times {\mathrm{19}}^3$

素因数の和:80

約数の個数: 56

約数和(自身を含む): 47479920

約数和(自身を除く): 22478865

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 81, 95, 135, 171, 243, 285, 361, 405, 513, 729, 855, 1083, 1215, 1539, 1805, 2565, 3249, 3645, 4617, 5415, 6859, 7695, 9747, 13851, 16245, 20577, 23085, 29241, 34295, 48735, 61731, 69255, 87723, 102885, 146205, 185193, 263169, 308655, 438615, 555579, 925965, 1315845, 1666737, 2777895, 5000211, 8333685, 25001055]

約数ペア:

[(1, 25001055), (3, 8333685), (5, 5000211), (9, 2777895), (15, 1666737), (19, 1315845), (27, 925965), (45, 555579), (57, 438615), (81, 308655), (95, 263169), (135, 185193), (171, 146205), (243, 102885), (285, 87723), (361, 69255), (405, 61731), (513, 48735), (729, 34295), (855, 29241), (1083, 23085), (1215, 20577), (1539, 16245), (1805, 13851), (2565, 9747), (3249, 7695), (3645, 6859), (4617, 5415)]