2065202020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{67979}}^1$

素因数の和:68033

約数の個数: 72

約数和(自身を含む): 5207811840

約数和(自身を除く): 3142609820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 49, 62, 70, 98, 124, 140, 155, 196, 217, 245, 310, 434, 490, 620, 868, 980, 1085, 1519, 2170, 3038, 4340, 6076, 7595, 15190, 30380, 67979, 135958, 271916, 339895, 475853, 679790, 951706, 1359580, 1903412, 2107349, 2379265, 3330971, 4214698, 4758530, 6661942, 8429396, 9517060, 10536745, 13323884, 14751443, 16654855, 21073490, 29502886, 33309710, 42146980, 59005772, 66619420, 73757215, 103260101, 147514430, 206520202, 295028860, 413040404, 516300505, 1032601010, 2065202020]

約数ペア:

[(1, 2065202020), (2, 1032601010), (4, 516300505), (5, 413040404), (7, 295028860), (10, 206520202), (14, 147514430), (20, 103260101), (28, 73757215), (31, 66619420), (35, 59005772), (49, 42146980), (62, 33309710), (70, 29502886), (98, 21073490), (124, 16654855), (140, 14751443), (155, 13323884), (196, 10536745), (217, 9517060), (245, 8429396), (310, 6661942), (434, 4758530), (490, 4214698), (620, 3330971), (868, 2379265), (980, 2107349), (1085, 1903412), (1519, 1359580), (2170, 951706), (3038, 679790), (4340, 475853), (6076, 339895), (7595, 271916), (15190, 135958), (30380, 67979)]