220121325

素因数分解:

$3^2\times 5^2\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{193}}^1$

素因数の和:383

約数の個数: 72

約数和(自身を含む): 409986408

約数和(自身を除く): 189865083

約数列:

[1, 3, 5, 9, 15, 25, 37, 45, 75, 111, 137, 185, 193, 225, 333, 411, 555, 579, 685, 925, 965, 1233, 1665, 1737, 2055, 2775, 2895, 3425, 4825, 5069, 6165, 7141, 8325, 8685, 10275, 14475, 15207, 21423, 25345, 26441, 30825, 35705, 43425, 45621, 64269, 76035, 79323, 107115, 126725, 132205, 178525, 228105, 237969, 321345, 380175, 396615, 535575, 661025, 978317, 1140525, 1189845, 1606725, 1983075, 2934951, 4891585, 5949225, 8804853, 14674755, 24457925, 44024265, 73373775, 220121325]

約数ペア:

[(1, 220121325), (3, 73373775), (5, 44024265), (9, 24457925), (15, 14674755), (25, 8804853), (37, 5949225), (45, 4891585), (75, 2934951), (111, 1983075), (137, 1606725), (185, 1189845), (193, 1140525), (225, 978317), (333, 661025), (411, 535575), (555, 396615), (579, 380175), (685, 321345), (925, 237969), (965, 228105), (1233, 178525), (1665, 132205), (1737, 126725), (2055, 107115), (2775, 79323), (2895, 76035), (3425, 64269), (4825, 45621), (5069, 43425), (6165, 35705), (7141, 30825), (8325, 26441), (8685, 25345), (10275, 21423), (14475, 15207)]