18408950

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{149}}^1\times {\mathrm{353}}^1$

素因数の和:521

約数の個数: 48

約数和(自身を含む): 39506400

約数和(自身を除く): 21097450

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 149, 175, 298, 350, 353, 706, 745, 1043, 1490, 1765, 2086, 2471, 3530, 3725, 4942, 5215, 7450, 8825, 10430, 12355, 17650, 24710, 26075, 52150, 52597, 61775, 105194, 123550, 262985, 368179, 525970, 736358, 1314925, 1840895, 2629850, 3681790, 9204475, 18408950]

約数ペア:

[(1, 18408950), (2, 9204475), (5, 3681790), (7, 2629850), (10, 1840895), (14, 1314925), (25, 736358), (35, 525970), (50, 368179), (70, 262985), (149, 123550), (175, 105194), (298, 61775), (350, 52597), (353, 52150), (706, 26075), (745, 24710), (1043, 17650), (1490, 12355), (1765, 10430), (2086, 8825), (2471, 7450), (3530, 5215), (3725, 4942)]