20849670

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:147

約数の個数: 128

約数和(自身を含む): 59719680

約数和(自身を除く): 38870010

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 31, 45, 47, 53, 54, 62, 90, 93, 94, 106, 135, 141, 155, 159, 186, 235, 265, 270, 279, 282, 310, 318, 423, 465, 470, 477, 530, 558, 705, 795, 837, 846, 930, 954, 1269, 1395, 1410, 1431, 1457, 1590, 1643, 1674, 2115, 2385, 2491, 2538, 2790, 2862, 2914, 3286, 4185, 4230, 4371, 4770, 4929, 4982, 6345, 7155, 7285, 7473, 8215, 8370, 8742, 9858, 12455, 12690, 13113, 14310, 14570, 14787, 14946, 16430, 21855, 22419, 24645, 24910, 26226, 29574, 37365, 39339, 43710, 44361, 44838, 49290, 65565, 67257, 73935, 74730, 77221, 78678, 88722, 112095, 131130, 134514, 147870, 154442, 196695, 221805, 224190, 231663, 336285, 386105, 393390, 443610, 463326, 672570, 694989, 772210, 1158315, 1389978, 2084967, 2316630, 3474945, 4169934, 6949890, 10424835, 20849670]

約数ペア:

[(1, 20849670), (2, 10424835), (3, 6949890), (5, 4169934), (6, 3474945), (9, 2316630), (10, 2084967), (15, 1389978), (18, 1158315), (27, 772210), (30, 694989), (31, 672570), (45, 463326), (47, 443610), (53, 393390), (54, 386105), (62, 336285), (90, 231663), (93, 224190), (94, 221805), (106, 196695), (135, 154442), (141, 147870), (155, 134514), (159, 131130), (186, 112095), (235, 88722), (265, 78678), (270, 77221), (279, 74730), (282, 73935), (310, 67257), (318, 65565), (423, 49290), (465, 44838), (470, 44361), (477, 43710), (530, 39339), (558, 37365), (705, 29574), (795, 26226), (837, 24910), (846, 24645), (930, 22419), (954, 21855), (1269, 16430), (1395, 14946), (1410, 14787), (1431, 14570), (1457, 14310), (1590, 13113), (1643, 12690), (1674, 12455), (2115, 9858), (2385, 8742), (2491, 8370), (2538, 8215), (2790, 7473), (2862, 7285), (2914, 7155), (3286, 6345), (4185, 4982), (4230, 4929), (4371, 4770)]