19995750

素因数分解:

$2^1\times 3^2\times 5^3\times {\mathrm{8887}}^1$

素因数の和:8910

約数の個数: 48

約数和(自身を含む): 54074592

約数和(自身を除く): 34078842

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 125, 150, 225, 250, 375, 450, 750, 1125, 2250, 8887, 17774, 26661, 44435, 53322, 79983, 88870, 133305, 159966, 222175, 266610, 399915, 444350, 666525, 799830, 1110875, 1333050, 1999575, 2221750, 3332625, 3999150, 6665250, 9997875, 19995750]

約数ペア:

[(1, 19995750), (2, 9997875), (3, 6665250), (5, 3999150), (6, 3332625), (9, 2221750), (10, 1999575), (15, 1333050), (18, 1110875), (25, 799830), (30, 666525), (45, 444350), (50, 399915), (75, 266610), (90, 222175), (125, 159966), (150, 133305), (225, 88870), (250, 79983), (375, 53322), (450, 44435), (750, 26661), (1125, 17774), (2250, 8887)]