664274940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{1581607}}^1$

素因数の和:1581626

約数の個数: 48

約数和(自身を含む): 2125681152

約数和(自身を除く): 1461406212

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, 1581607, 3163214, 4744821, 6326428, 7908035, 9489642, 11071249, 15816070, 18979284, 22142498, 23724105, 31632140, 33213747, 44284996, 47448210, 55356245, 66427494, 94896420, 110712490, 132854988, 166068735, 221424980, 332137470, 664274940]

約数ペア:

[(1, 664274940), (2, 332137470), (3, 221424980), (4, 166068735), (5, 132854988), (6, 110712490), (7, 94896420), (10, 66427494), (12, 55356245), (14, 47448210), (15, 44284996), (20, 33213747), (21, 31632140), (28, 23724105), (30, 22142498), (35, 18979284), (42, 15816070), (60, 11071249), (70, 9489642), (84, 7908035), (105, 6326428), (140, 4744821), (210, 3163214), (420, 1581607)]