212772140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{6359}}^1$

素因数の和:6614

約数の個数: 48

約数和(自身を含む): 512870400

約数和(自身を除く): 300098260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 239, 478, 956, 1195, 1673, 2390, 3346, 4780, 6359, 6692, 8365, 12718, 16730, 25436, 31795, 33460, 44513, 63590, 89026, 127180, 178052, 222565, 445130, 890260, 1519801, 3039602, 6079204, 7599005, 10638607, 15198010, 21277214, 30396020, 42554428, 53193035, 106386070, 212772140]

約数ペア:

[(1, 212772140), (2, 106386070), (4, 53193035), (5, 42554428), (7, 30396020), (10, 21277214), (14, 15198010), (20, 10638607), (28, 7599005), (35, 6079204), (70, 3039602), (140, 1519801), (239, 890260), (478, 445130), (956, 222565), (1195, 178052), (1673, 127180), (2390, 89026), (3346, 63590), (4780, 44513), (6359, 33460), (6692, 31795), (8365, 25436), (12718, 16730)]