78504400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{487}}^1$

素因数の和:549

約数の個数: 120

約数和(自身を含む): 210097664

約数和(自身を除く): 131593264

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 31, 40, 50, 52, 62, 65, 80, 100, 104, 124, 130, 155, 200, 208, 248, 260, 310, 325, 400, 403, 487, 496, 520, 620, 650, 775, 806, 974, 1040, 1240, 1300, 1550, 1612, 1948, 2015, 2435, 2480, 2600, 3100, 3224, 3896, 4030, 4870, 5200, 6200, 6331, 6448, 7792, 8060, 9740, 10075, 12175, 12400, 12662, 15097, 16120, 19480, 20150, 24350, 25324, 30194, 31655, 32240, 38960, 40300, 48700, 50648, 60388, 63310, 75485, 80600, 97400, 101296, 120776, 126620, 150970, 158275, 161200, 194800, 196261, 241552, 253240, 301940, 316550, 377425, 392522, 506480, 603880, 633100, 754850, 785044, 981305, 1207760, 1266200, 1509700, 1570088, 1962610, 2532400, 3019400, 3140176, 3925220, 4906525, 6038800, 7850440, 9813050, 15700880, 19626100, 39252200, 78504400]

約数ペア:

[(1, 78504400), (2, 39252200), (4, 19626100), (5, 15700880), (8, 9813050), (10, 7850440), (13, 6038800), (16, 4906525), (20, 3925220), (25, 3140176), (26, 3019400), (31, 2532400), (40, 1962610), (50, 1570088), (52, 1509700), (62, 1266200), (65, 1207760), (80, 981305), (100, 785044), (104, 754850), (124, 633100), (130, 603880), (155, 506480), (200, 392522), (208, 377425), (248, 316550), (260, 301940), (310, 253240), (325, 241552), (400, 196261), (403, 194800), (487, 161200), (496, 158275), (520, 150970), (620, 126620), (650, 120776), (775, 101296), (806, 97400), (974, 80600), (1040, 75485), (1240, 63310), (1300, 60388), (1550, 50648), (1612, 48700), (1948, 40300), (2015, 38960), (2435, 32240), (2480, 31655), (2600, 30194), (3100, 25324), (3224, 24350), (3896, 20150), (4030, 19480), (4870, 16120), (5200, 15097), (6200, 12662), (6331, 12400), (6448, 12175), (7792, 10075), (8060, 9740)]