1644860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{379}}^1$

素因数の和:426

約数の個数: 48

約数和(自身を含む): 4085760

約数和(自身を除く): 2440900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 379, 434, 620, 758, 868, 1085, 1516, 1895, 2170, 2653, 3790, 4340, 5306, 7580, 10612, 11749, 13265, 23498, 26530, 46996, 53060, 58745, 82243, 117490, 164486, 234980, 328972, 411215, 822430, 1644860]

約数ペア:

[(1, 1644860), (2, 822430), (4, 411215), (5, 328972), (7, 234980), (10, 164486), (14, 117490), (20, 82243), (28, 58745), (31, 53060), (35, 46996), (62, 26530), (70, 23498), (124, 13265), (140, 11749), (155, 10612), (217, 7580), (310, 5306), (379, 4340), (434, 3790), (620, 2653), (758, 2170), (868, 1895), (1085, 1516)]