66656020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{433}}^1$

素因数の和:664

約数の個数: 48

約数和(自身を含む): 144365760

約数和(自身を除く): 77709740

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 179, 215, 358, 430, 433, 716, 860, 866, 895, 1732, 1790, 2165, 3580, 4330, 7697, 8660, 15394, 18619, 30788, 37238, 38485, 74476, 76970, 77507, 93095, 153940, 155014, 186190, 310028, 372380, 387535, 775070, 1550140, 3332801, 6665602, 13331204, 16664005, 33328010, 66656020]

約数ペア:

[(1, 66656020), (2, 33328010), (4, 16664005), (5, 13331204), (10, 6665602), (20, 3332801), (43, 1550140), (86, 775070), (172, 387535), (179, 372380), (215, 310028), (358, 186190), (430, 155014), (433, 153940), (716, 93095), (860, 77507), (866, 76970), (895, 74476), (1732, 38485), (1790, 37238), (2165, 30788), (3580, 18619), (4330, 15394), (7697, 8660)]