20556250

素因数分解:

$2^1\times 5^5\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1$

素因数の和:74

約数の個数: 96

約数和(自身を含む): 47246976

約数和(自身を除く): 26690726

約数列:

[1, 2, 5, 10, 11, 13, 22, 23, 25, 26, 46, 50, 55, 65, 110, 115, 125, 130, 143, 230, 250, 253, 275, 286, 299, 325, 506, 550, 575, 598, 625, 650, 715, 1150, 1250, 1265, 1375, 1430, 1495, 1625, 2530, 2750, 2875, 2990, 3125, 3250, 3289, 3575, 5750, 6250, 6325, 6578, 6875, 7150, 7475, 8125, 12650, 13750, 14375, 14950, 16250, 16445, 17875, 28750, 31625, 32890, 34375, 35750, 37375, 40625, 63250, 68750, 71875, 74750, 81250, 82225, 89375, 143750, 158125, 164450, 178750, 186875, 316250, 373750, 411125, 446875, 790625, 822250, 893750, 934375, 1581250, 1868750, 2055625, 4111250, 10278125, 20556250]

約数ペア:

[(1, 20556250), (2, 10278125), (5, 4111250), (10, 2055625), (11, 1868750), (13, 1581250), (22, 934375), (23, 893750), (25, 822250), (26, 790625), (46, 446875), (50, 411125), (55, 373750), (65, 316250), (110, 186875), (115, 178750), (125, 164450), (130, 158125), (143, 143750), (230, 89375), (250, 82225), (253, 81250), (275, 74750), (286, 71875), (299, 68750), (325, 63250), (506, 40625), (550, 37375), (575, 35750), (598, 34375), (625, 32890), (650, 31625), (715, 28750), (1150, 17875), (1250, 16445), (1265, 16250), (1375, 14950), (1430, 14375), (1495, 13750), (1625, 12650), (2530, 8125), (2750, 7475), (2875, 7150), (2990, 6875), (3125, 6578), (3250, 6325), (3289, 6250), (3575, 5750)]