72617994640

素因数分解:

$2^4\times 5^1\times {\mathrm{97}}^1\times {\mathrm{457}}^1\times {\mathrm{20477}}^1$

素因数の和:21044

約数の個数: 80

約数和(自身を含む): 170959026672

約数和(自身を除く): 98341032032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 97, 194, 388, 457, 485, 776, 914, 970, 1552, 1828, 1940, 2285, 3656, 3880, 4570, 7312, 7760, 9140, 18280, 20477, 36560, 40954, 44329, 81908, 88658, 102385, 163816, 177316, 204770, 221645, 327632, 354632, 409540, 443290, 709264, 819080, 886580, 1638160, 1773160, 1986269, 3546320, 3972538, 7945076, 9357989, 9931345, 15890152, 18715978, 19862690, 31780304, 37431956, 39725380, 46789945, 74863912, 79450760, 93579890, 149727824, 158901520, 187159780, 374319560, 748639120, 907724933, 1815449866, 3630899732, 4538624665, 7261799464, 9077249330, 14523598928, 18154498660, 36308997320, 72617994640]

約数ペア:

[(1, 72617994640), (2, 36308997320), (4, 18154498660), (5, 14523598928), (8, 9077249330), (10, 7261799464), (16, 4538624665), (20, 3630899732), (40, 1815449866), (80, 907724933), (97, 748639120), (194, 374319560), (388, 187159780), (457, 158901520), (485, 149727824), (776, 93579890), (914, 79450760), (970, 74863912), (1552, 46789945), (1828, 39725380), (1940, 37431956), (2285, 31780304), (3656, 19862690), (3880, 18715978), (4570, 15890152), (7312, 9931345), (7760, 9357989), (9140, 7945076), (18280, 3972538), (20477, 3546320), (36560, 1986269), (40954, 1773160), (44329, 1638160), (81908, 886580), (88658, 819080), (102385, 709264), (163816, 443290), (177316, 409540), (204770, 354632), (221645, 327632)]