31681935

素因数分解:

$3^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{571}}^1$

素因数の和:725

約数の個数: 40

約数和(自身を含む): 57307536

約数和(自身を除く): 25625601

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 137, 405, 411, 571, 685, 1233, 1713, 2055, 2855, 3699, 5139, 6165, 8565, 11097, 15417, 18495, 25695, 46251, 55485, 77085, 78227, 231255, 234681, 391135, 704043, 1173405, 2112129, 3520215, 6336387, 10560645, 31681935]

約数ペア:

[(1, 31681935), (3, 10560645), (5, 6336387), (9, 3520215), (15, 2112129), (27, 1173405), (45, 704043), (81, 391135), (135, 234681), (137, 231255), (405, 78227), (411, 77085), (571, 55485), (685, 46251), (1233, 25695), (1713, 18495), (2055, 15417), (2855, 11097), (3699, 8565), (5139, 6165)]