17831980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{293}}^1$

素因数の和:498

約数の個数: 48

約数和(自身を含む): 40007520

約数和(自身を除く): 22175540

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 179, 293, 340, 358, 586, 716, 895, 1172, 1465, 1790, 2930, 3043, 3580, 4981, 5860, 6086, 9962, 12172, 15215, 19924, 24905, 30430, 49810, 52447, 60860, 99620, 104894, 209788, 262235, 524470, 891599, 1048940, 1783198, 3566396, 4457995, 8915990, 17831980]

約数ペア:

[(1, 17831980), (2, 8915990), (4, 4457995), (5, 3566396), (10, 1783198), (17, 1048940), (20, 891599), (34, 524470), (68, 262235), (85, 209788), (170, 104894), (179, 99620), (293, 60860), (340, 52447), (358, 49810), (586, 30430), (716, 24905), (895, 19924), (1172, 15215), (1465, 12172), (1790, 9962), (2930, 6086), (3043, 5860), (3580, 4981)]