20315520

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{3527}}^1$

素因数の和:3552

約数の個数: 96

約数和(自身を含む): 70171920

約数和(自身を除く): 49856400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 288, 320, 360, 384, 480, 576, 640, 720, 960, 1152, 1440, 1920, 2880, 3527, 5760, 7054, 10581, 14108, 17635, 21162, 28216, 31743, 35270, 42324, 52905, 56432, 63486, 70540, 84648, 105810, 112864, 126972, 141080, 158715, 169296, 211620, 225728, 253944, 282160, 317430, 338592, 423240, 451456, 507888, 564320, 634860, 677184, 846480, 1015776, 1128640, 1269720, 1354368, 1692960, 2031552, 2257280, 2539440, 3385920, 4063104, 5078880, 6771840, 10157760, 20315520]

約数ペア:

[(1, 20315520), (2, 10157760), (3, 6771840), (4, 5078880), (5, 4063104), (6, 3385920), (8, 2539440), (9, 2257280), (10, 2031552), (12, 1692960), (15, 1354368), (16, 1269720), (18, 1128640), (20, 1015776), (24, 846480), (30, 677184), (32, 634860), (36, 564320), (40, 507888), (45, 451456), (48, 423240), (60, 338592), (64, 317430), (72, 282160), (80, 253944), (90, 225728), (96, 211620), (120, 169296), (128, 158715), (144, 141080), (160, 126972), (180, 112864), (192, 105810), (240, 84648), (288, 70540), (320, 63486), (360, 56432), (384, 52905), (480, 42324), (576, 35270), (640, 31743), (720, 28216), (960, 21162), (1152, 17635), (1440, 14108), (1920, 10581), (2880, 7054), (3527, 5760)]