1615880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{199}}^1$

素因数の和:246

約数の個数: 64

約数和(自身を含む): 4320000

約数和(自身を除く): 2704120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 199, 203, 232, 280, 290, 398, 406, 580, 796, 812, 995, 1015, 1160, 1393, 1592, 1624, 1990, 2030, 2786, 3980, 4060, 5572, 5771, 6965, 7960, 8120, 11144, 11542, 13930, 23084, 27860, 28855, 40397, 46168, 55720, 57710, 80794, 115420, 161588, 201985, 230840, 323176, 403970, 807940, 1615880]

約数ペア:

[(1, 1615880), (2, 807940), (4, 403970), (5, 323176), (7, 230840), (8, 201985), (10, 161588), (14, 115420), (20, 80794), (28, 57710), (29, 55720), (35, 46168), (40, 40397), (56, 28855), (58, 27860), (70, 23084), (116, 13930), (140, 11542), (145, 11144), (199, 8120), (203, 7960), (232, 6965), (280, 5771), (290, 5572), (398, 4060), (406, 3980), (580, 2786), (796, 2030), (812, 1990), (995, 1624), (1015, 1592), (1160, 1393)]