2402780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{191}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 5515776

約数和(自身を除く): 3112996

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 37, 68, 74, 85, 148, 170, 185, 191, 340, 370, 382, 629, 740, 764, 955, 1258, 1910, 2516, 3145, 3247, 3820, 6290, 6494, 7067, 12580, 12988, 14134, 16235, 28268, 32470, 35335, 64940, 70670, 120139, 141340, 240278, 480556, 600695, 1201390, 2402780]

約数ペア:

[(1, 2402780), (2, 1201390), (4, 600695), (5, 480556), (10, 240278), (17, 141340), (20, 120139), (34, 70670), (37, 64940), (68, 35335), (74, 32470), (85, 28268), (148, 16235), (170, 14134), (185, 12988), (191, 12580), (340, 7067), (370, 6494), (382, 6290), (629, 3820), (740, 3247), (764, 3145), (955, 2516), (1258, 1910)]