20418250

素因数分解:

$2^1\times 5^3\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1$

素因数の和:160

約数の個数: 64

約数和(自身を含む): 41243904

約数和(自身を除く): 20825654

約数列:

[1, 2, 5, 10, 23, 25, 46, 50, 53, 67, 106, 115, 125, 134, 230, 250, 265, 335, 530, 575, 670, 1150, 1219, 1325, 1541, 1675, 2438, 2650, 2875, 3082, 3350, 3551, 5750, 6095, 6625, 7102, 7705, 8375, 12190, 13250, 15410, 16750, 17755, 30475, 35510, 38525, 60950, 77050, 81673, 88775, 152375, 163346, 177550, 192625, 304750, 385250, 408365, 443875, 816730, 887750, 2041825, 4083650, 10209125, 20418250]

約数ペア:

[(1, 20418250), (2, 10209125), (5, 4083650), (10, 2041825), (23, 887750), (25, 816730), (46, 443875), (50, 408365), (53, 385250), (67, 304750), (106, 192625), (115, 177550), (125, 163346), (134, 152375), (230, 88775), (250, 81673), (265, 77050), (335, 60950), (530, 38525), (575, 35510), (670, 30475), (1150, 17755), (1219, 16750), (1325, 15410), (1541, 13250), (1675, 12190), (2438, 8375), (2650, 7705), (2875, 7102), (3082, 6625), (3350, 6095), (3551, 5750)]