81458700

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{461}}^1$

素因数の和:528

約数の個数: 144

約数和(自身を含む): 256650240

約数和(自身を除く): 175191540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 25, 30, 31, 38, 50, 57, 60, 62, 75, 76, 93, 95, 100, 114, 124, 150, 155, 186, 190, 228, 285, 300, 310, 372, 380, 461, 465, 475, 570, 589, 620, 775, 922, 930, 950, 1140, 1178, 1383, 1425, 1550, 1767, 1844, 1860, 1900, 2305, 2325, 2356, 2766, 2850, 2945, 3100, 3534, 4610, 4650, 5532, 5700, 5890, 6915, 7068, 8759, 8835, 9220, 9300, 11525, 11780, 13830, 14291, 14725, 17518, 17670, 23050, 26277, 27660, 28582, 29450, 34575, 35036, 35340, 42873, 43795, 44175, 46100, 52554, 57164, 58900, 69150, 71455, 85746, 87590, 88350, 105108, 131385, 138300, 142910, 171492, 175180, 176700, 214365, 218975, 262770, 271529, 285820, 357275, 428730, 437950, 525540, 543058, 656925, 714550, 814587, 857460, 875900, 1071825, 1086116, 1313850, 1357645, 1429100, 1629174, 2143650, 2627700, 2715290, 3258348, 4072935, 4287300, 5430580, 6788225, 8145870, 13576450, 16291740, 20364675, 27152900, 40729350, 81458700]

約数ペア:

[(1, 81458700), (2, 40729350), (3, 27152900), (4, 20364675), (5, 16291740), (6, 13576450), (10, 8145870), (12, 6788225), (15, 5430580), (19, 4287300), (20, 4072935), (25, 3258348), (30, 2715290), (31, 2627700), (38, 2143650), (50, 1629174), (57, 1429100), (60, 1357645), (62, 1313850), (75, 1086116), (76, 1071825), (93, 875900), (95, 857460), (100, 814587), (114, 714550), (124, 656925), (150, 543058), (155, 525540), (186, 437950), (190, 428730), (228, 357275), (285, 285820), (300, 271529), (310, 262770), (372, 218975), (380, 214365), (461, 176700), (465, 175180), (475, 171492), (570, 142910), (589, 138300), (620, 131385), (775, 105108), (922, 88350), (930, 87590), (950, 85746), (1140, 71455), (1178, 69150), (1383, 58900), (1425, 57164), (1550, 52554), (1767, 46100), (1844, 44175), (1860, 43795), (1900, 42873), (2305, 35340), (2325, 35036), (2356, 34575), (2766, 29450), (2850, 28582), (2945, 27660), (3100, 26277), (3534, 23050), (4610, 17670), (4650, 17518), (5532, 14725), (5700, 14291), (5890, 13830), (6915, 11780), (7068, 11525), (8759, 9300), (8835, 9220)]