2021255180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{20249}}^1$

素因数の和:20319

約数の個数: 96

約数和(自身を含む): 5225472000

約数和(自身を除く): 3204216820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 31, 35, 46, 62, 70, 92, 115, 124, 140, 155, 161, 217, 230, 310, 322, 434, 460, 620, 644, 713, 805, 868, 1085, 1426, 1610, 2170, 2852, 3220, 3565, 4340, 4991, 7130, 9982, 14260, 19964, 20249, 24955, 40498, 49910, 80996, 99820, 101245, 141743, 202490, 283486, 404980, 465727, 566972, 627719, 708715, 931454, 1255438, 1417430, 1862908, 2328635, 2510876, 2834860, 3138595, 3260089, 4394033, 4657270, 6277190, 6520178, 8788066, 9314540, 12554380, 13040356, 14437537, 16300445, 17576132, 21970165, 28875074, 32600890, 43940330, 57750148, 65201780, 72187685, 87880660, 101062759, 144375370, 202125518, 288750740, 404251036, 505313795, 1010627590, 2021255180]

約数ペア:

[(1, 2021255180), (2, 1010627590), (4, 505313795), (5, 404251036), (7, 288750740), (10, 202125518), (14, 144375370), (20, 101062759), (23, 87880660), (28, 72187685), (31, 65201780), (35, 57750148), (46, 43940330), (62, 32600890), (70, 28875074), (92, 21970165), (115, 17576132), (124, 16300445), (140, 14437537), (155, 13040356), (161, 12554380), (217, 9314540), (230, 8788066), (310, 6520178), (322, 6277190), (434, 4657270), (460, 4394033), (620, 3260089), (644, 3138595), (713, 2834860), (805, 2510876), (868, 2328635), (1085, 1862908), (1426, 1417430), (1610, 1255438), (2170, 931454), (2852, 708715), (3220, 627719), (3565, 566972), (4340, 465727), (4991, 404980), (7130, 283486), (9982, 202490), (14260, 141743), (19964, 101245), (20249, 99820), (24955, 80996), (40498, 49910)]