80922400

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:315

約数の個数: 144

約数和(自身を含む): 220485888

約数和(自身を除く): 139563488

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 31, 32, 40, 50, 52, 62, 65, 80, 100, 104, 124, 130, 155, 160, 200, 208, 248, 251, 260, 310, 325, 400, 403, 416, 496, 502, 520, 620, 650, 775, 800, 806, 992, 1004, 1040, 1240, 1255, 1300, 1550, 1612, 2008, 2015, 2080, 2480, 2510, 2600, 3100, 3224, 3263, 4016, 4030, 4960, 5020, 5200, 6200, 6275, 6448, 6526, 7781, 8032, 8060, 10040, 10075, 10400, 12400, 12550, 12896, 13052, 15562, 16120, 16315, 20080, 20150, 24800, 25100, 26104, 31124, 32240, 32630, 38905, 40160, 40300, 50200, 52208, 62248, 64480, 65260, 77810, 80600, 81575, 100400, 101153, 104416, 124496, 130520, 155620, 161200, 163150, 194525, 200800, 202306, 248992, 261040, 311240, 322400, 326300, 389050, 404612, 505765, 522080, 622480, 652600, 778100, 809224, 1011530, 1244960, 1305200, 1556200, 1618448, 2023060, 2528825, 2610400, 3112400, 3236896, 4046120, 5057650, 6224800, 8092240, 10115300, 16184480, 20230600, 40461200, 80922400]

約数ペア:

[(1, 80922400), (2, 40461200), (4, 20230600), (5, 16184480), (8, 10115300), (10, 8092240), (13, 6224800), (16, 5057650), (20, 4046120), (25, 3236896), (26, 3112400), (31, 2610400), (32, 2528825), (40, 2023060), (50, 1618448), (52, 1556200), (62, 1305200), (65, 1244960), (80, 1011530), (100, 809224), (104, 778100), (124, 652600), (130, 622480), (155, 522080), (160, 505765), (200, 404612), (208, 389050), (248, 326300), (251, 322400), (260, 311240), (310, 261040), (325, 248992), (400, 202306), (403, 200800), (416, 194525), (496, 163150), (502, 161200), (520, 155620), (620, 130520), (650, 124496), (775, 104416), (800, 101153), (806, 100400), (992, 81575), (1004, 80600), (1040, 77810), (1240, 65260), (1255, 64480), (1300, 62248), (1550, 52208), (1612, 50200), (2008, 40300), (2015, 40160), (2080, 38905), (2480, 32630), (2510, 32240), (2600, 31124), (3100, 26104), (3224, 25100), (3263, 24800), (4016, 20150), (4030, 20080), (4960, 16315), (5020, 16120), (5200, 15562), (6200, 13052), (6275, 12896), (6448, 12550), (6526, 12400), (7781, 10400), (8032, 10075), (8060, 10040)]