3156140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:282

約数の個数: 48

約数和(自身を含む): 7291200

約数和(自身を除く): 4135060

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 61, 65, 122, 130, 199, 244, 260, 305, 398, 610, 793, 796, 995, 1220, 1586, 1990, 2587, 3172, 3965, 3980, 5174, 7930, 10348, 12139, 12935, 15860, 24278, 25870, 48556, 51740, 60695, 121390, 157807, 242780, 315614, 631228, 789035, 1578070, 3156140]

約数ペア:

[(1, 3156140), (2, 1578070), (4, 789035), (5, 631228), (10, 315614), (13, 242780), (20, 157807), (26, 121390), (52, 60695), (61, 51740), (65, 48556), (122, 25870), (130, 24278), (199, 15860), (244, 12935), (260, 12139), (305, 10348), (398, 7930), (610, 5174), (793, 3980), (796, 3965), (995, 3172), (1220, 2587), (1586, 1990)]