20720790

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{467}}^1$

素因数の和:526

約数の個数: 96

約数和(自身を含む): 59136480

約数和(自身を除く): 38415690

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 29, 30, 34, 45, 51, 58, 85, 87, 90, 102, 145, 153, 170, 174, 255, 261, 290, 306, 435, 467, 493, 510, 522, 765, 870, 934, 986, 1305, 1401, 1479, 1530, 2335, 2465, 2610, 2802, 2958, 4203, 4437, 4670, 4930, 7005, 7395, 7939, 8406, 8874, 13543, 14010, 14790, 15878, 21015, 22185, 23817, 27086, 39695, 40629, 42030, 44370, 47634, 67715, 71451, 79390, 81258, 119085, 121887, 135430, 142902, 203145, 230231, 238170, 243774, 357255, 406290, 460462, 609435, 690693, 714510, 1151155, 1218870, 1381386, 2072079, 2302310, 3453465, 4144158, 6906930, 10360395, 20720790]

約数ペア:

[(1, 20720790), (2, 10360395), (3, 6906930), (5, 4144158), (6, 3453465), (9, 2302310), (10, 2072079), (15, 1381386), (17, 1218870), (18, 1151155), (29, 714510), (30, 690693), (34, 609435), (45, 460462), (51, 406290), (58, 357255), (85, 243774), (87, 238170), (90, 230231), (102, 203145), (145, 142902), (153, 135430), (170, 121887), (174, 119085), (255, 81258), (261, 79390), (290, 71451), (306, 67715), (435, 47634), (467, 44370), (493, 42030), (510, 40629), (522, 39695), (765, 27086), (870, 23817), (934, 22185), (986, 21015), (1305, 15878), (1401, 14790), (1479, 14010), (1530, 13543), (2335, 8874), (2465, 8406), (2610, 7939), (2802, 7395), (2958, 7005), (4203, 4930), (4437, 4670)]