15812500

素因数分解:

$2^2\times 5^6\times {\mathrm{11}}^1\times {\mathrm{23}}^1$

素因数の和:68

約数の個数: 84

約数和(自身を含む): 39374496

約数和(自身を除く): 23561996

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 25, 44, 46, 50, 55, 92, 100, 110, 115, 125, 220, 230, 250, 253, 275, 460, 500, 506, 550, 575, 625, 1012, 1100, 1150, 1250, 1265, 1375, 2300, 2500, 2530, 2750, 2875, 3125, 5060, 5500, 5750, 6250, 6325, 6875, 11500, 12500, 12650, 13750, 14375, 15625, 25300, 27500, 28750, 31250, 31625, 34375, 57500, 62500, 63250, 68750, 71875, 126500, 137500, 143750, 158125, 171875, 287500, 316250, 343750, 359375, 632500, 687500, 718750, 790625, 1437500, 1581250, 3162500, 3953125, 7906250, 15812500]

約数ペア:

[(1, 15812500), (2, 7906250), (4, 3953125), (5, 3162500), (10, 1581250), (11, 1437500), (20, 790625), (22, 718750), (23, 687500), (25, 632500), (44, 359375), (46, 343750), (50, 316250), (55, 287500), (92, 171875), (100, 158125), (110, 143750), (115, 137500), (125, 126500), (220, 71875), (230, 68750), (250, 63250), (253, 62500), (275, 57500), (460, 34375), (500, 31625), (506, 31250), (550, 28750), (575, 27500), (625, 25300), (1012, 15625), (1100, 14375), (1150, 13750), (1250, 12650), (1265, 12500), (1375, 11500), (2300, 6875), (2500, 6325), (2530, 6250), (2750, 5750), (2875, 5500), (3125, 5060)]