1781029740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{4240547}}^1$

素因数の和:4240566

約数の個数: 48

約数和(自身を含む): 5699296512

約数和(自身を除く): 3918266772

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 4240547, 8481094, 12721641, 16962188, 21202735, 25443282, 29683829, 42405470, 50886564, 59367658, 63608205, 84810940, 89051487, 118735316, 127216410, 148419145, 178102974, 254432820, 296838290, 356205948, 445257435, 593676580, 890514870, 1781029740]

約数ペア:

[(1, 1781029740), (2, 890514870), (3, 593676580), (4, 445257435), (5, 356205948), (6, 296838290), (7, 254432820), (10, 178102974), (12, 148419145), (14, 127216410), (15, 118735316), (20, 89051487), (21, 84810940), (28, 63608205), (30, 59367658), (35, 50886564), (42, 42405470), (60, 29683829), (70, 25443282), (84, 21202735), (105, 16962188), (140, 12721641), (210, 8481094), (420, 4240547)]