18138900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{4651}}^1$

素因数の和:4681

約数の個数: 72

約数和(自身を含む): 56531104

約数和(自身を除く): 38392204

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 25, 26, 30, 39, 50, 52, 60, 65, 75, 78, 100, 130, 150, 156, 195, 260, 300, 325, 390, 650, 780, 975, 1300, 1950, 3900, 4651, 9302, 13953, 18604, 23255, 27906, 46510, 55812, 60463, 69765, 93020, 116275, 120926, 139530, 181389, 232550, 241852, 279060, 302315, 348825, 362778, 465100, 604630, 697650, 725556, 906945, 1209260, 1395300, 1511575, 1813890, 3023150, 3627780, 4534725, 6046300, 9069450, 18138900]

約数ペア:

[(1, 18138900), (2, 9069450), (3, 6046300), (4, 4534725), (5, 3627780), (6, 3023150), (10, 1813890), (12, 1511575), (13, 1395300), (15, 1209260), (20, 906945), (25, 725556), (26, 697650), (30, 604630), (39, 465100), (50, 362778), (52, 348825), (60, 302315), (65, 279060), (75, 241852), (78, 232550), (100, 181389), (130, 139530), (150, 120926), (156, 116275), (195, 93020), (260, 69765), (300, 60463), (325, 55812), (390, 46510), (650, 27906), (780, 23255), (975, 18604), (1300, 13953), (1950, 9302), (3900, 4651)]