30681945

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{379}}^1$

素因数の和:654

約数の個数: 48

約数和(自身を含む): 61176960

約数和(自身を除く): 30495015

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 257, 315, 379, 771, 1137, 1285, 1799, 1895, 2313, 2653, 3411, 3855, 5397, 5685, 7959, 8995, 11565, 13265, 16191, 17055, 23877, 26985, 39795, 80955, 97403, 119385, 292209, 487015, 681821, 876627, 1461045, 2045463, 3409105, 4383135, 6136389, 10227315, 30681945]

約数ペア:

[(1, 30681945), (3, 10227315), (5, 6136389), (7, 4383135), (9, 3409105), (15, 2045463), (21, 1461045), (35, 876627), (45, 681821), (63, 487015), (105, 292209), (257, 119385), (315, 97403), (379, 80955), (771, 39795), (1137, 26985), (1285, 23877), (1799, 17055), (1895, 16191), (2313, 13265), (2653, 11565), (3411, 8995), (3855, 7959), (5397, 5685)]