18306500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:126

約数の個数: 96

約数和(自身を含む): 44029440

約数和(自身を除く): 25722940

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 41, 47, 50, 76, 82, 94, 95, 100, 125, 164, 188, 190, 205, 235, 250, 380, 410, 470, 475, 500, 779, 820, 893, 940, 950, 1025, 1175, 1558, 1786, 1900, 1927, 2050, 2350, 2375, 3116, 3572, 3854, 3895, 4100, 4465, 4700, 4750, 5125, 5875, 7708, 7790, 8930, 9500, 9635, 10250, 11750, 15580, 17860, 19270, 19475, 20500, 22325, 23500, 36613, 38540, 38950, 44650, 48175, 73226, 77900, 89300, 96350, 97375, 111625, 146452, 183065, 192700, 194750, 223250, 240875, 366130, 389500, 446500, 481750, 732260, 915325, 963500, 1830650, 3661300, 4576625, 9153250, 18306500]

約数ペア:

[(1, 18306500), (2, 9153250), (4, 4576625), (5, 3661300), (10, 1830650), (19, 963500), (20, 915325), (25, 732260), (38, 481750), (41, 446500), (47, 389500), (50, 366130), (76, 240875), (82, 223250), (94, 194750), (95, 192700), (100, 183065), (125, 146452), (164, 111625), (188, 97375), (190, 96350), (205, 89300), (235, 77900), (250, 73226), (380, 48175), (410, 44650), (470, 38950), (475, 38540), (500, 36613), (779, 23500), (820, 22325), (893, 20500), (940, 19475), (950, 19270), (1025, 17860), (1175, 15580), (1558, 11750), (1786, 10250), (1900, 9635), (1927, 9500), (2050, 8930), (2350, 7790), (2375, 7708), (3116, 5875), (3572, 5125), (3854, 4750), (3895, 4700), (4100, 4465)]