18329870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1$

素因数の和:261

約数の個数: 64

約数和(自身を含む): 38525760

約数和(自身を除く): 20195890

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 41, 65, 82, 95, 130, 181, 190, 205, 247, 362, 410, 494, 533, 779, 905, 1066, 1235, 1558, 1810, 2353, 2470, 2665, 3439, 3895, 4706, 5330, 6878, 7421, 7790, 10127, 11765, 14842, 17195, 20254, 23530, 34390, 37105, 44707, 50635, 74210, 89414, 96473, 101270, 140999, 192946, 223535, 281998, 447070, 482365, 704995, 964730, 1409990, 1832987, 3665974, 9164935, 18329870]

約数ペア:

[(1, 18329870), (2, 9164935), (5, 3665974), (10, 1832987), (13, 1409990), (19, 964730), (26, 704995), (38, 482365), (41, 447070), (65, 281998), (82, 223535), (95, 192946), (130, 140999), (181, 101270), (190, 96473), (205, 89414), (247, 74210), (362, 50635), (410, 44707), (494, 37105), (533, 34390), (779, 23530), (905, 20254), (1066, 17195), (1235, 14842), (1558, 11765), (1810, 10127), (2353, 7790), (2470, 7421), (2665, 6878), (3439, 5330), (3895, 4706)]