18330725

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 28272000

約数和(自身を除く): 9941275

約数列:

[1, 5, 7, 19, 25, 35, 37, 95, 133, 149, 175, 185, 259, 475, 665, 703, 745, 925, 1043, 1295, 2831, 3325, 3515, 3725, 4921, 5215, 5513, 6475, 14155, 17575, 19817, 24605, 26075, 27565, 38591, 70775, 99085, 104747, 123025, 137825, 192955, 495425, 523735, 733229, 964775, 2618675, 3666145, 18330725]

約数ペア:

[(1, 18330725), (5, 3666145), (7, 2618675), (19, 964775), (25, 733229), (35, 523735), (37, 495425), (95, 192955), (133, 137825), (149, 123025), (175, 104747), (185, 99085), (259, 70775), (475, 38591), (665, 27565), (703, 26075), (745, 24605), (925, 19817), (1043, 17575), (1295, 14155), (2831, 6475), (3325, 5513), (3515, 5215), (3725, 4921)]