20155380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1297}}^1$

素因数の和:1353

約数の個数: 96

約数和(自身を含む): 66291456

約数和(自身を除く): 46136076

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 37, 42, 60, 70, 74, 84, 105, 111, 140, 148, 185, 210, 222, 259, 370, 420, 444, 518, 555, 740, 777, 1036, 1110, 1295, 1297, 1554, 2220, 2590, 2594, 3108, 3885, 3891, 5180, 5188, 6485, 7770, 7782, 9079, 12970, 15540, 15564, 18158, 19455, 25940, 27237, 36316, 38910, 45395, 47989, 54474, 77820, 90790, 95978, 108948, 136185, 143967, 181580, 191956, 239945, 272370, 287934, 335923, 479890, 544740, 575868, 671846, 719835, 959780, 1007769, 1343692, 1439670, 1679615, 2015538, 2879340, 3359230, 4031076, 5038845, 6718460, 10077690, 20155380]

約数ペア:

[(1, 20155380), (2, 10077690), (3, 6718460), (4, 5038845), (5, 4031076), (6, 3359230), (7, 2879340), (10, 2015538), (12, 1679615), (14, 1439670), (15, 1343692), (20, 1007769), (21, 959780), (28, 719835), (30, 671846), (35, 575868), (37, 544740), (42, 479890), (60, 335923), (70, 287934), (74, 272370), (84, 239945), (105, 191956), (111, 181580), (140, 143967), (148, 136185), (185, 108948), (210, 95978), (222, 90790), (259, 77820), (370, 54474), (420, 47989), (444, 45395), (518, 38910), (555, 36316), (740, 27237), (777, 25940), (1036, 19455), (1110, 18158), (1295, 15564), (1297, 15540), (1554, 12970), (2220, 9079), (2590, 7782), (2594, 7770), (3108, 6485), (3885, 5188), (3891, 5180)]