19343740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{59}}^1\times {\mathrm{97}}^1$

素因数の和:191

約数の個数: 72

約数和(自身を含む): 45193680

約数和(自身を除く): 25849940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 59, 65, 97, 118, 130, 169, 194, 236, 260, 295, 338, 388, 485, 590, 676, 767, 845, 970, 1180, 1261, 1534, 1690, 1940, 2522, 3068, 3380, 3835, 5044, 5723, 6305, 7670, 9971, 11446, 12610, 15340, 16393, 19942, 22892, 25220, 28615, 32786, 39884, 49855, 57230, 65572, 74399, 81965, 99710, 114460, 148798, 163930, 199420, 297596, 327860, 371995, 743990, 967187, 1487980, 1934374, 3868748, 4835935, 9671870, 19343740]

約数ペア:

[(1, 19343740), (2, 9671870), (4, 4835935), (5, 3868748), (10, 1934374), (13, 1487980), (20, 967187), (26, 743990), (52, 371995), (59, 327860), (65, 297596), (97, 199420), (118, 163930), (130, 148798), (169, 114460), (194, 99710), (236, 81965), (260, 74399), (295, 65572), (338, 57230), (388, 49855), (485, 39884), (590, 32786), (676, 28615), (767, 25220), (845, 22892), (970, 19942), (1180, 16393), (1261, 15340), (1534, 12610), (1690, 11446), (1940, 9971), (2522, 7670), (3068, 6305), (3380, 5723), (3835, 5044)]