20444580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8737}}^1$

素因数の和:8765

約数の個数: 72

約数和(自身を含む): 66793272

約数和(自身を除く): 46348692

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 8737, 17474, 26211, 34948, 43685, 52422, 78633, 87370, 104844, 113581, 131055, 157266, 174740, 227162, 262110, 314532, 340743, 393165, 454324, 524220, 567905, 681486, 786330, 1022229, 1135810, 1362972, 1572660, 1703715, 2044458, 2271620, 3407430, 4088916, 5111145, 6814860, 10222290, 20444580]

約数ペア:

[(1, 20444580), (2, 10222290), (3, 6814860), (4, 5111145), (5, 4088916), (6, 3407430), (9, 2271620), (10, 2044458), (12, 1703715), (13, 1572660), (15, 1362972), (18, 1135810), (20, 1022229), (26, 786330), (30, 681486), (36, 567905), (39, 524220), (45, 454324), (52, 393165), (60, 340743), (65, 314532), (78, 262110), (90, 227162), (117, 174740), (130, 157266), (156, 131055), (180, 113581), (195, 104844), (234, 87370), (260, 78633), (390, 52422), (468, 43685), (585, 34948), (780, 26211), (1170, 17474), (2340, 8737)]