19746225

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:215

約数の個数: 72

約数和(自身を含む): 38688000

約数和(自身を除く): 18941775

約数列:

[1, 3, 5, 9, 15, 19, 25, 31, 45, 57, 75, 93, 95, 149, 155, 171, 225, 279, 285, 447, 465, 475, 589, 745, 775, 855, 1341, 1395, 1425, 1767, 2235, 2325, 2831, 2945, 3725, 4275, 4619, 5301, 6705, 6975, 8493, 8835, 11175, 13857, 14155, 14725, 23095, 25479, 26505, 33525, 41571, 42465, 44175, 69285, 70775, 87761, 115475, 127395, 132525, 207855, 212325, 263283, 346425, 438805, 636975, 789849, 1039275, 1316415, 2194025, 3949245, 6582075, 19746225]

約数ペア:

[(1, 19746225), (3, 6582075), (5, 3949245), (9, 2194025), (15, 1316415), (19, 1039275), (25, 789849), (31, 636975), (45, 438805), (57, 346425), (75, 263283), (93, 212325), (95, 207855), (149, 132525), (155, 127395), (171, 115475), (225, 87761), (279, 70775), (285, 69285), (447, 44175), (465, 42465), (475, 41571), (589, 33525), (745, 26505), (775, 25479), (855, 23095), (1341, 14725), (1395, 14155), (1425, 13857), (1767, 11175), (2235, 8835), (2325, 8493), (2831, 6975), (2945, 6705), (3725, 5301), (4275, 4619)]