128691920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{6211}}^1$

素因数の和:6268

約数の個数: 80

約数和(自身を含む): 351251328

約数和(自身を除く): 222559408

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 37, 40, 56, 70, 74, 80, 112, 140, 148, 185, 259, 280, 296, 370, 518, 560, 592, 740, 1036, 1295, 1480, 2072, 2590, 2960, 4144, 5180, 6211, 10360, 12422, 20720, 24844, 31055, 43477, 49688, 62110, 86954, 99376, 124220, 173908, 217385, 229807, 248440, 347816, 434770, 459614, 496880, 695632, 869540, 919228, 1149035, 1608649, 1739080, 1838456, 2298070, 3217298, 3478160, 3676912, 4596140, 6434596, 8043245, 9192280, 12869192, 16086490, 18384560, 25738384, 32172980, 64345960, 128691920]

約数ペア:

[(1, 128691920), (2, 64345960), (4, 32172980), (5, 25738384), (7, 18384560), (8, 16086490), (10, 12869192), (14, 9192280), (16, 8043245), (20, 6434596), (28, 4596140), (35, 3676912), (37, 3478160), (40, 3217298), (56, 2298070), (70, 1838456), (74, 1739080), (80, 1608649), (112, 1149035), (140, 919228), (148, 869540), (185, 695632), (259, 496880), (280, 459614), (296, 434770), (370, 347816), (518, 248440), (560, 229807), (592, 217385), (740, 173908), (1036, 124220), (1295, 99376), (1480, 86954), (2072, 62110), (2590, 49688), (2960, 43477), (4144, 31055), (5180, 24844), (6211, 20720), (10360, 12422)]