1243855625

素因数分解:

$5^4\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1493}}^1$

素因数の和:1587

約数の個数: 40

約数和(自身を含む): 1642874112

約数和(自身を除く): 399018487

約数列:

[1, 5, 25, 31, 43, 125, 155, 215, 625, 775, 1075, 1333, 1493, 3875, 5375, 6665, 7465, 19375, 26875, 33325, 37325, 46283, 64199, 166625, 186625, 231415, 320995, 833125, 933125, 1157075, 1604975, 1990169, 5785375, 8024875, 9950845, 28926875, 40124375, 49754225, 248771125, 1243855625]

約数ペア:

[(1, 1243855625), (5, 248771125), (25, 49754225), (31, 40124375), (43, 28926875), (125, 9950845), (155, 8024875), (215, 5785375), (625, 1990169), (775, 1604975), (1075, 1157075), (1333, 933125), (1493, 833125), (3875, 320995), (5375, 231415), (6665, 186625), (7465, 166625), (19375, 64199), (26875, 46283), (33325, 37325)]