256878400

素因数分解:

$2^6\times 5^2\times {\mathrm{31}}^1\times {\mathrm{5179}}^1$

素因数の和:5232

約数の個数: 84

約数和(自身を含む): 652597120

約数和(自身を除く): 395718720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 155, 160, 200, 248, 310, 320, 400, 496, 620, 775, 800, 992, 1240, 1550, 1600, 1984, 2480, 3100, 4960, 5179, 6200, 9920, 10358, 12400, 20716, 24800, 25895, 41432, 49600, 51790, 82864, 103580, 129475, 160549, 165728, 207160, 258950, 321098, 331456, 414320, 517900, 642196, 802745, 828640, 1035800, 1284392, 1605490, 1657280, 2071600, 2568784, 3210980, 4013725, 4143200, 5137568, 6421960, 8027450, 8286400, 10275136, 12843920, 16054900, 25687840, 32109800, 51375680, 64219600, 128439200, 256878400]

約数ペア:

[(1, 256878400), (2, 128439200), (4, 64219600), (5, 51375680), (8, 32109800), (10, 25687840), (16, 16054900), (20, 12843920), (25, 10275136), (31, 8286400), (32, 8027450), (40, 6421960), (50, 5137568), (62, 4143200), (64, 4013725), (80, 3210980), (100, 2568784), (124, 2071600), (155, 1657280), (160, 1605490), (200, 1284392), (248, 1035800), (310, 828640), (320, 802745), (400, 642196), (496, 517900), (620, 414320), (775, 331456), (800, 321098), (992, 258950), (1240, 207160), (1550, 165728), (1600, 160549), (1984, 129475), (2480, 103580), (3100, 82864), (4960, 51790), (5179, 49600), (6200, 41432), (9920, 25895), (10358, 24800), (12400, 20716)]