19318520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{383}}^1$

素因数の和:504

約数の個数: 64

約数和(自身を含む): 47416320

約数和(自身を除く): 28097800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 97, 104, 130, 194, 260, 383, 388, 485, 520, 766, 776, 970, 1261, 1532, 1915, 1940, 2522, 3064, 3830, 3880, 4979, 5044, 6305, 7660, 9958, 10088, 12610, 15320, 19916, 24895, 25220, 37151, 39832, 49790, 50440, 74302, 99580, 148604, 185755, 199160, 297208, 371510, 482963, 743020, 965926, 1486040, 1931852, 2414815, 3863704, 4829630, 9659260, 19318520]

約数ペア:

[(1, 19318520), (2, 9659260), (4, 4829630), (5, 3863704), (8, 2414815), (10, 1931852), (13, 1486040), (20, 965926), (26, 743020), (40, 482963), (52, 371510), (65, 297208), (97, 199160), (104, 185755), (130, 148604), (194, 99580), (260, 74302), (383, 50440), (388, 49790), (485, 39832), (520, 37151), (766, 25220), (776, 24895), (970, 19916), (1261, 15320), (1532, 12610), (1915, 10088), (1940, 9958), (2522, 7660), (3064, 6305), (3830, 5044), (3880, 4979)]