219640540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{2837}}^1$

素因数の和:2939

約数の個数: 72

約数和(自身を含む): 543533760

約数和(自身を除く): 323893220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 79, 98, 140, 158, 196, 245, 316, 395, 490, 553, 790, 980, 1106, 1580, 2212, 2765, 2837, 3871, 5530, 5674, 7742, 11060, 11348, 14185, 15484, 19355, 19859, 28370, 38710, 39718, 56740, 77420, 79436, 99295, 139013, 198590, 224123, 278026, 397180, 448246, 556052, 695065, 896492, 1120615, 1390130, 1568861, 2241230, 2780260, 3137722, 4482460, 6275444, 7844305, 10982027, 15688610, 21964054, 31377220, 43928108, 54910135, 109820270, 219640540]

約数ペア:

[(1, 219640540), (2, 109820270), (4, 54910135), (5, 43928108), (7, 31377220), (10, 21964054), (14, 15688610), (20, 10982027), (28, 7844305), (35, 6275444), (49, 4482460), (70, 3137722), (79, 2780260), (98, 2241230), (140, 1568861), (158, 1390130), (196, 1120615), (245, 896492), (316, 695065), (395, 556052), (490, 448246), (553, 397180), (790, 278026), (980, 224123), (1106, 198590), (1580, 139013), (2212, 99295), (2765, 79436), (2837, 77420), (3871, 56740), (5530, 39718), (5674, 38710), (7742, 28370), (11060, 19859), (11348, 19355), (14185, 15484)]