12381720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7937}}^1$

素因数の和:7964

約数の個数: 64

約数和(自身を含む): 40007520

約数和(自身を除く): 27625800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 7937, 15874, 23811, 31748, 39685, 47622, 63496, 79370, 95244, 103181, 119055, 158740, 190488, 206362, 238110, 309543, 317480, 412724, 476220, 515905, 619086, 825448, 952440, 1031810, 1238172, 1547715, 2063620, 2476344, 3095430, 4127240, 6190860, 12381720]

約数ペア:

[(1, 12381720), (2, 6190860), (3, 4127240), (4, 3095430), (5, 2476344), (6, 2063620), (8, 1547715), (10, 1238172), (12, 1031810), (13, 952440), (15, 825448), (20, 619086), (24, 515905), (26, 476220), (30, 412724), (39, 317480), (40, 309543), (52, 238110), (60, 206362), (65, 190488), (78, 158740), (104, 119055), (120, 103181), (130, 95244), (156, 79370), (195, 63496), (260, 47622), (312, 39685), (390, 31748), (520, 23811), (780, 15874), (1560, 7937)]