77980240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{773}}^1$

素因数の和:896

約数の個数: 80

約数和(自身を含む): 197518608

約数和(自身を除く): 119538368

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 97, 104, 130, 194, 208, 260, 388, 485, 520, 773, 776, 970, 1040, 1261, 1546, 1552, 1940, 2522, 3092, 3865, 3880, 5044, 6184, 6305, 7730, 7760, 10049, 10088, 12368, 12610, 15460, 20098, 20176, 25220, 30920, 40196, 50245, 50440, 61840, 74981, 80392, 100490, 100880, 149962, 160784, 200980, 299924, 374905, 401960, 599848, 749810, 803920, 974753, 1199696, 1499620, 1949506, 2999240, 3899012, 4873765, 5998480, 7798024, 9747530, 15596048, 19495060, 38990120, 77980240]

約数ペア:

[(1, 77980240), (2, 38990120), (4, 19495060), (5, 15596048), (8, 9747530), (10, 7798024), (13, 5998480), (16, 4873765), (20, 3899012), (26, 2999240), (40, 1949506), (52, 1499620), (65, 1199696), (80, 974753), (97, 803920), (104, 749810), (130, 599848), (194, 401960), (208, 374905), (260, 299924), (388, 200980), (485, 160784), (520, 149962), (773, 100880), (776, 100490), (970, 80392), (1040, 74981), (1261, 61840), (1546, 50440), (1552, 50245), (1940, 40196), (2522, 30920), (3092, 25220), (3865, 20176), (3880, 20098), (5044, 15460), (6184, 12610), (6305, 12368), (7730, 10088), (7760, 10049)]