20156335780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1\times {\mathrm{17659}}^1$

素因数の和:17969

約数の個数: 96

約数和(自身を含む): 50128404480

約数和(自身を除く): 29972068700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 263, 310, 434, 526, 620, 868, 1052, 1085, 1315, 1841, 2170, 2630, 3682, 4340, 5260, 7364, 8153, 9205, 16306, 17659, 18410, 32612, 35318, 36820, 40765, 57071, 70636, 81530, 88295, 114142, 123613, 163060, 176590, 228284, 247226, 285355, 353180, 494452, 547429, 570710, 618065, 1094858, 1141420, 1236130, 2189716, 2472260, 2737145, 3832003, 4644317, 5474290, 7664006, 9288634, 10948580, 15328012, 18577268, 19160015, 23221585, 32510219, 38320030, 46443170, 65020438, 76640060, 92886340, 130040876, 143973827, 162551095, 287947654, 325102190, 575895308, 650204380, 719869135, 1007816789, 1439738270, 2015633578, 2879476540, 4031267156, 5039083945, 10078167890, 20156335780]

約数ペア:

[(1, 20156335780), (2, 10078167890), (4, 5039083945), (5, 4031267156), (7, 2879476540), (10, 2015633578), (14, 1439738270), (20, 1007816789), (28, 719869135), (31, 650204380), (35, 575895308), (62, 325102190), (70, 287947654), (124, 162551095), (140, 143973827), (155, 130040876), (217, 92886340), (263, 76640060), (310, 65020438), (434, 46443170), (526, 38320030), (620, 32510219), (868, 23221585), (1052, 19160015), (1085, 18577268), (1315, 15328012), (1841, 10948580), (2170, 9288634), (2630, 7664006), (3682, 5474290), (4340, 4644317), (5260, 3832003), (7364, 2737145), (8153, 2472260), (9205, 2189716), (16306, 1236130), (17659, 1141420), (18410, 1094858), (32612, 618065), (35318, 570710), (36820, 547429), (40765, 494452), (57071, 353180), (70636, 285355), (81530, 247226), (88295, 228284), (114142, 176590), (123613, 163060)]