2020005820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{439}}^1\times {\mathrm{1429}}^1$

素因数の和:1907

約数の個数: 96

約数和(自身を含む): 5073868800

約数和(自身を除く): 3053862980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 439, 460, 644, 805, 878, 1429, 1610, 1756, 2195, 2858, 3073, 3220, 4390, 5716, 6146, 7145, 8780, 10003, 10097, 12292, 14290, 15365, 20006, 20194, 28580, 30730, 32867, 40012, 40388, 50015, 50485, 61460, 65734, 70679, 100030, 100970, 131468, 141358, 164335, 200060, 201940, 230069, 282716, 328670, 353395, 460138, 627331, 657340, 706790, 920276, 1150345, 1254662, 1413580, 2300690, 2509324, 3136655, 4391317, 4601380, 6273310, 8782634, 12546620, 14428613, 17565268, 21956585, 28857226, 43913170, 57714452, 72143065, 87826340, 101000291, 144286130, 202000582, 288572260, 404001164, 505001455, 1010002910, 2020005820]

約数ペア:

[(1, 2020005820), (2, 1010002910), (4, 505001455), (5, 404001164), (7, 288572260), (10, 202000582), (14, 144286130), (20, 101000291), (23, 87826340), (28, 72143065), (35, 57714452), (46, 43913170), (70, 28857226), (92, 21956585), (115, 17565268), (140, 14428613), (161, 12546620), (230, 8782634), (322, 6273310), (439, 4601380), (460, 4391317), (644, 3136655), (805, 2509324), (878, 2300690), (1429, 1413580), (1610, 1254662), (1756, 1150345), (2195, 920276), (2858, 706790), (3073, 657340), (3220, 627331), (4390, 460138), (5716, 353395), (6146, 328670), (7145, 282716), (8780, 230069), (10003, 201940), (10097, 200060), (12292, 164335), (14290, 141358), (15365, 131468), (20006, 100970), (20194, 100030), (28580, 70679), (30730, 65734), (32867, 61460), (40012, 50485), (40388, 50015)]