20173671440

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1303}}^1\times {\mathrm{14887}}^1$

素因数の和:16216

約数の個数: 80

約数和(自身を含む): 50553931008

約数和(自身を除く): 30380259568

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 1303, 2606, 5212, 6515, 10424, 13030, 14887, 16939, 20848, 26060, 29774, 33878, 52120, 59548, 67756, 74435, 84695, 104240, 119096, 135512, 148870, 169390, 193531, 238192, 271024, 297740, 338780, 387062, 595480, 677560, 774124, 967655, 1190960, 1355120, 1548248, 1935310, 3096496, 3870620, 7741240, 15482480, 19397761, 38795522, 77591044, 96988805, 155182088, 193977610, 252170893, 310364176, 387955220, 504341786, 775910440, 1008683572, 1260854465, 1551820880, 2017367144, 2521708930, 4034734288, 5043417860, 10086835720, 20173671440]

約数ペア:

[(1, 20173671440), (2, 10086835720), (4, 5043417860), (5, 4034734288), (8, 2521708930), (10, 2017367144), (13, 1551820880), (16, 1260854465), (20, 1008683572), (26, 775910440), (40, 504341786), (52, 387955220), (65, 310364176), (80, 252170893), (104, 193977610), (130, 155182088), (208, 96988805), (260, 77591044), (520, 38795522), (1040, 19397761), (1303, 15482480), (2606, 7741240), (5212, 3870620), (6515, 3096496), (10424, 1935310), (13030, 1548248), (14887, 1355120), (16939, 1190960), (20848, 967655), (26060, 774124), (29774, 677560), (33878, 595480), (52120, 387062), (59548, 338780), (67756, 297740), (74435, 271024), (84695, 238192), (104240, 193531), (119096, 169390), (135512, 148870)]