216346520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{13421}}^1$

素因数の和:13476

約数の個数: 64

約数和(自身を含む): 541175040

約数和(自身を除く): 324828520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 403, 520, 620, 806, 1240, 1612, 2015, 3224, 4030, 8060, 13421, 16120, 26842, 53684, 67105, 107368, 134210, 174473, 268420, 348946, 416051, 536840, 697892, 832102, 872365, 1395784, 1664204, 1744730, 2080255, 3328408, 3489460, 4160510, 5408663, 6978920, 8321020, 10817326, 16642040, 21634652, 27043315, 43269304, 54086630, 108173260, 216346520]

約数ペア:

[(1, 216346520), (2, 108173260), (4, 54086630), (5, 43269304), (8, 27043315), (10, 21634652), (13, 16642040), (20, 10817326), (26, 8321020), (31, 6978920), (40, 5408663), (52, 4160510), (62, 3489460), (65, 3328408), (104, 2080255), (124, 1744730), (130, 1664204), (155, 1395784), (248, 872365), (260, 832102), (310, 697892), (403, 536840), (520, 416051), (620, 348946), (806, 268420), (1240, 174473), (1612, 134210), (2015, 107368), (3224, 67105), (4030, 53684), (8060, 26842), (13421, 16120)]