78437240

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{5717}}^1$

素因数の和:5749

約数の個数: 64

約数和(自身を含む): 205848000

約数和(自身を除く): 127410760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1715, 1960, 2744, 3430, 5717, 6860, 11434, 13720, 22868, 28585, 40019, 45736, 57170, 80038, 114340, 160076, 200095, 228680, 280133, 320152, 400190, 560266, 800380, 1120532, 1400665, 1600760, 1960931, 2241064, 2801330, 3921862, 5602660, 7843724, 9804655, 11205320, 15687448, 19609310, 39218620, 78437240]

約数ペア:

[(1, 78437240), (2, 39218620), (4, 19609310), (5, 15687448), (7, 11205320), (8, 9804655), (10, 7843724), (14, 5602660), (20, 3921862), (28, 2801330), (35, 2241064), (40, 1960931), (49, 1600760), (56, 1400665), (70, 1120532), (98, 800380), (140, 560266), (196, 400190), (245, 320152), (280, 280133), (343, 228680), (392, 200095), (490, 160076), (686, 114340), (980, 80038), (1372, 57170), (1715, 45736), (1960, 40019), (2744, 28585), (3430, 22868), (5717, 13720), (6860, 11434)]