1218710620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{67631}}^1$

素因数の和:67710

約数の個数: 48

約数和(自身を含む): 2761008768

約数和(自身を除く): 1542298148

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 53, 68, 85, 106, 170, 212, 265, 340, 530, 901, 1060, 1802, 3604, 4505, 9010, 18020, 67631, 135262, 270524, 338155, 676310, 1149727, 1352620, 2299454, 3584443, 4598908, 5748635, 7168886, 11497270, 14337772, 17922215, 22994540, 35844430, 60935531, 71688860, 121871062, 243742124, 304677655, 609355310, 1218710620]

約数ペア:

[(1, 1218710620), (2, 609355310), (4, 304677655), (5, 243742124), (10, 121871062), (17, 71688860), (20, 60935531), (34, 35844430), (53, 22994540), (68, 17922215), (85, 14337772), (106, 11497270), (170, 7168886), (212, 5748635), (265, 4598908), (340, 3584443), (530, 2299454), (901, 1352620), (1060, 1149727), (1802, 676310), (3604, 338155), (4505, 270524), (9010, 135262), (18020, 67631)]