406728140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{1123}}^1$

素因数の和:1351

約数の個数: 96

約数和(自身を含む): 1057459200

約数和(自身を除く): 650731060

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 199, 260, 364, 398, 455, 796, 910, 995, 1123, 1393, 1820, 1990, 2246, 2587, 2786, 3980, 4492, 5174, 5572, 5615, 6965, 7861, 10348, 11230, 12935, 13930, 14599, 15722, 18109, 22460, 25870, 27860, 29198, 31444, 36218, 39305, 51740, 58396, 72436, 72995, 78610, 90545, 102193, 145990, 157220, 181090, 204386, 223477, 291980, 362180, 408772, 446954, 510965, 893908, 1021930, 1117385, 1564339, 2043860, 2234770, 2905201, 3128678, 4469540, 5810402, 6257356, 7821695, 11620804, 14526005, 15643390, 20336407, 29052010, 31286780, 40672814, 58104020, 81345628, 101682035, 203364070, 406728140]

約数ペア:

[(1, 406728140), (2, 203364070), (4, 101682035), (5, 81345628), (7, 58104020), (10, 40672814), (13, 31286780), (14, 29052010), (20, 20336407), (26, 15643390), (28, 14526005), (35, 11620804), (52, 7821695), (65, 6257356), (70, 5810402), (91, 4469540), (130, 3128678), (140, 2905201), (182, 2234770), (199, 2043860), (260, 1564339), (364, 1117385), (398, 1021930), (455, 893908), (796, 510965), (910, 446954), (995, 408772), (1123, 362180), (1393, 291980), (1820, 223477), (1990, 204386), (2246, 181090), (2587, 157220), (2786, 145990), (3980, 102193), (4492, 90545), (5174, 78610), (5572, 72995), (5615, 72436), (6965, 58396), (7861, 51740), (10348, 39305), (11230, 36218), (12935, 31444), (13930, 29198), (14599, 27860), (15722, 25870), (18109, 22460)]