406468900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:234

約数の個数: 144

約数和(自身を含む): 982159360

約数和(自身を除く): 575690460

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 31, 38, 50, 62, 67, 76, 95, 100, 103, 124, 134, 155, 190, 206, 268, 310, 335, 380, 412, 475, 515, 589, 620, 670, 775, 950, 1030, 1178, 1273, 1340, 1550, 1675, 1900, 1957, 2060, 2077, 2356, 2546, 2575, 2945, 3100, 3193, 3350, 3914, 4154, 5092, 5150, 5890, 6365, 6386, 6700, 6901, 7828, 8308, 9785, 10300, 10385, 11780, 12730, 12772, 13802, 14725, 15965, 19570, 20770, 25460, 27604, 29450, 31825, 31930, 34505, 39140, 39463, 41540, 48925, 51925, 58900, 60667, 63650, 63860, 69010, 78926, 79825, 97850, 103850, 121334, 127300, 131119, 138020, 157852, 159650, 172525, 195700, 197315, 207700, 213931, 242668, 262238, 303335, 319300, 345050, 394630, 427862, 524476, 606670, 655595, 690100, 789260, 855724, 986575, 1069655, 1213340, 1311190, 1516675, 1973150, 2139310, 2622380, 3033350, 3277975, 3946300, 4064689, 4278620, 5348275, 6066700, 6555950, 8129378, 10696550, 13111900, 16258756, 20323445, 21393100, 40646890, 81293780, 101617225, 203234450, 406468900]

約数ペア:

[(1, 406468900), (2, 203234450), (4, 101617225), (5, 81293780), (10, 40646890), (19, 21393100), (20, 20323445), (25, 16258756), (31, 13111900), (38, 10696550), (50, 8129378), (62, 6555950), (67, 6066700), (76, 5348275), (95, 4278620), (100, 4064689), (103, 3946300), (124, 3277975), (134, 3033350), (155, 2622380), (190, 2139310), (206, 1973150), (268, 1516675), (310, 1311190), (335, 1213340), (380, 1069655), (412, 986575), (475, 855724), (515, 789260), (589, 690100), (620, 655595), (670, 606670), (775, 524476), (950, 427862), (1030, 394630), (1178, 345050), (1273, 319300), (1340, 303335), (1550, 262238), (1675, 242668), (1900, 213931), (1957, 207700), (2060, 197315), (2077, 195700), (2356, 172525), (2546, 159650), (2575, 157852), (2945, 138020), (3100, 131119), (3193, 127300), (3350, 121334), (3914, 103850), (4154, 97850), (5092, 79825), (5150, 78926), (5890, 69010), (6365, 63860), (6386, 63650), (6700, 60667), (6901, 58900), (7828, 51925), (8308, 48925), (9785, 41540), (10300, 39463), (10385, 39140), (11780, 34505), (12730, 31930), (12772, 31825), (13802, 29450), (14725, 27604), (15965, 25460), (19570, 20770)]