28108980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8219}}^1$

素因数の和:8253

約数の個数: 72

約数和(自身を含む): 89762400

約数和(自身を除く): 61653420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 8219, 16438, 24657, 32876, 41095, 49314, 73971, 82190, 98628, 123285, 147942, 156161, 164380, 246570, 295884, 312322, 369855, 468483, 493140, 624644, 739710, 780805, 936966, 1405449, 1479420, 1561610, 1873932, 2342415, 2810898, 3123220, 4684830, 5621796, 7027245, 9369660, 14054490, 28108980]

約数ペア:

[(1, 28108980), (2, 14054490), (3, 9369660), (4, 7027245), (5, 5621796), (6, 4684830), (9, 3123220), (10, 2810898), (12, 2342415), (15, 1873932), (18, 1561610), (19, 1479420), (20, 1405449), (30, 936966), (36, 780805), (38, 739710), (45, 624644), (57, 493140), (60, 468483), (76, 369855), (90, 312322), (95, 295884), (114, 246570), (171, 164380), (180, 156161), (190, 147942), (228, 123285), (285, 98628), (342, 82190), (380, 73971), (570, 49314), (684, 41095), (855, 32876), (1140, 24657), (1710, 16438), (3420, 8219)]