31251840

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{397}}^1$

素因数の和:460

約数の個数: 128

約数和(自身を含む): 102301920

約数和(自身を除く): 71050080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 41, 48, 60, 64, 80, 82, 96, 120, 123, 128, 160, 164, 192, 205, 240, 246, 320, 328, 384, 397, 410, 480, 492, 615, 640, 656, 794, 820, 960, 984, 1191, 1230, 1312, 1588, 1640, 1920, 1968, 1985, 2382, 2460, 2624, 3176, 3280, 3936, 3970, 4764, 4920, 5248, 5955, 6352, 6560, 7872, 7940, 9528, 9840, 11910, 12704, 13120, 15744, 15880, 16277, 19056, 19680, 23820, 25408, 26240, 31760, 32554, 38112, 39360, 47640, 48831, 50816, 63520, 65108, 76224, 78720, 81385, 95280, 97662, 127040, 130216, 152448, 162770, 190560, 195324, 244155, 254080, 260432, 325540, 381120, 390648, 488310, 520864, 651080, 762240, 781296, 976620, 1041728, 1302160, 1562592, 1953240, 2083456, 2604320, 3125184, 3906480, 5208640, 6250368, 7812960, 10417280, 15625920, 31251840]

約数ペア:

[(1, 31251840), (2, 15625920), (3, 10417280), (4, 7812960), (5, 6250368), (6, 5208640), (8, 3906480), (10, 3125184), (12, 2604320), (15, 2083456), (16, 1953240), (20, 1562592), (24, 1302160), (30, 1041728), (32, 976620), (40, 781296), (41, 762240), (48, 651080), (60, 520864), (64, 488310), (80, 390648), (82, 381120), (96, 325540), (120, 260432), (123, 254080), (128, 244155), (160, 195324), (164, 190560), (192, 162770), (205, 152448), (240, 130216), (246, 127040), (320, 97662), (328, 95280), (384, 81385), (397, 78720), (410, 76224), (480, 65108), (492, 63520), (615, 50816), (640, 48831), (656, 47640), (794, 39360), (820, 38112), (960, 32554), (984, 31760), (1191, 26240), (1230, 25408), (1312, 23820), (1588, 19680), (1640, 19056), (1920, 16277), (1968, 15880), (1985, 15744), (2382, 13120), (2460, 12704), (2624, 11910), (3176, 9840), (3280, 9528), (3936, 7940), (3970, 7872), (4764, 6560), (4920, 6352), (5248, 5955)]