189005450

素因数分解:

$2^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1999}}^1$

素因数の和:2103

約数の個数: 48

約数和(自身を含む): 369024000

約数和(自身を除く): 180018550

約数列:

[1, 2, 5, 10, 25, 31, 50, 61, 62, 122, 155, 305, 310, 610, 775, 1525, 1550, 1891, 1999, 3050, 3782, 3998, 9455, 9995, 18910, 19990, 47275, 49975, 61969, 94550, 99950, 121939, 123938, 243878, 309845, 609695, 619690, 1219390, 1549225, 3048475, 3098450, 3780109, 6096950, 7560218, 18900545, 37801090, 94502725, 189005450]

約数ペア:

[(1, 189005450), (2, 94502725), (5, 37801090), (10, 18900545), (25, 7560218), (31, 6096950), (50, 3780109), (61, 3098450), (62, 3048475), (122, 1549225), (155, 1219390), (305, 619690), (310, 609695), (610, 309845), (775, 243878), (1525, 123938), (1550, 121939), (1891, 99950), (1999, 94550), (3050, 61969), (3782, 49975), (3998, 47275), (9455, 19990), (9995, 18910)]