20307480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:201

約数の個数: 128

約数和(自身を含む): 64696320

約数和(自身を除く): 44388840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 53, 60, 62, 93, 103, 106, 120, 124, 155, 159, 186, 206, 212, 248, 265, 309, 310, 318, 372, 412, 424, 465, 515, 530, 618, 620, 636, 744, 795, 824, 930, 1030, 1060, 1236, 1240, 1272, 1545, 1590, 1643, 1860, 2060, 2120, 2472, 3090, 3180, 3193, 3286, 3720, 4120, 4929, 5459, 6180, 6360, 6386, 6572, 8215, 9579, 9858, 10918, 12360, 12772, 13144, 15965, 16377, 16430, 19158, 19716, 21836, 24645, 25544, 27295, 31930, 32754, 32860, 38316, 39432, 43672, 47895, 49290, 54590, 63860, 65508, 65720, 76632, 81885, 95790, 98580, 109180, 127720, 131016, 163770, 169229, 191580, 197160, 218360, 327540, 338458, 383160, 507687, 655080, 676916, 846145, 1015374, 1353832, 1692290, 2030748, 2538435, 3384580, 4061496, 5076870, 6769160, 10153740, 20307480]

約数ペア:

[(1, 20307480), (2, 10153740), (3, 6769160), (4, 5076870), (5, 4061496), (6, 3384580), (8, 2538435), (10, 2030748), (12, 1692290), (15, 1353832), (20, 1015374), (24, 846145), (30, 676916), (31, 655080), (40, 507687), (53, 383160), (60, 338458), (62, 327540), (93, 218360), (103, 197160), (106, 191580), (120, 169229), (124, 163770), (155, 131016), (159, 127720), (186, 109180), (206, 98580), (212, 95790), (248, 81885), (265, 76632), (309, 65720), (310, 65508), (318, 63860), (372, 54590), (412, 49290), (424, 47895), (465, 43672), (515, 39432), (530, 38316), (618, 32860), (620, 32754), (636, 31930), (744, 27295), (795, 25544), (824, 24645), (930, 21836), (1030, 19716), (1060, 19158), (1236, 16430), (1240, 16377), (1272, 15965), (1545, 13144), (1590, 12772), (1643, 12360), (1860, 10918), (2060, 9858), (2120, 9579), (2472, 8215), (3090, 6572), (3180, 6386), (3193, 6360), (3286, 6180), (3720, 5459), (4120, 4929)]