128794640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{2099}}^1$

素因数の和:2184

約数の個数: 80

約数和(自身を含む): 328104000

約数和(自身を除く): 199309360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 59, 65, 80, 104, 118, 130, 208, 236, 260, 295, 472, 520, 590, 767, 944, 1040, 1180, 1534, 2099, 2360, 3068, 3835, 4198, 4720, 6136, 7670, 8396, 10495, 12272, 15340, 16792, 20990, 27287, 30680, 33584, 41980, 54574, 61360, 83960, 109148, 123841, 136435, 167920, 218296, 247682, 272870, 436592, 495364, 545740, 619205, 990728, 1091480, 1238410, 1609933, 1981456, 2182960, 2476820, 3219866, 4953640, 6439732, 8049665, 9907280, 12879464, 16099330, 25758928, 32198660, 64397320, 128794640]

約数ペア:

[(1, 128794640), (2, 64397320), (4, 32198660), (5, 25758928), (8, 16099330), (10, 12879464), (13, 9907280), (16, 8049665), (20, 6439732), (26, 4953640), (40, 3219866), (52, 2476820), (59, 2182960), (65, 1981456), (80, 1609933), (104, 1238410), (118, 1091480), (130, 990728), (208, 619205), (236, 545740), (260, 495364), (295, 436592), (472, 272870), (520, 247682), (590, 218296), (767, 167920), (944, 136435), (1040, 123841), (1180, 109148), (1534, 83960), (2099, 61360), (2360, 54574), (3068, 41980), (3835, 33584), (4198, 30680), (4720, 27287), (6136, 20990), (7670, 16792), (8396, 15340), (10495, 12272)]