19030280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1$

素因数の和:294

約数の個数: 64

約数和(自身を含む): 44928000

約数和(自身を除く): 25897720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 103, 124, 149, 155, 206, 248, 298, 310, 412, 515, 596, 620, 745, 824, 1030, 1192, 1240, 1490, 2060, 2980, 3193, 4120, 4619, 5960, 6386, 9238, 12772, 15347, 15965, 18476, 23095, 25544, 30694, 31930, 36952, 46190, 61388, 63860, 76735, 92380, 122776, 127720, 153470, 184760, 306940, 475757, 613880, 951514, 1903028, 2378785, 3806056, 4757570, 9515140, 19030280]

約数ペア:

[(1, 19030280), (2, 9515140), (4, 4757570), (5, 3806056), (8, 2378785), (10, 1903028), (20, 951514), (31, 613880), (40, 475757), (62, 306940), (103, 184760), (124, 153470), (149, 127720), (155, 122776), (206, 92380), (248, 76735), (298, 63860), (310, 61388), (412, 46190), (515, 36952), (596, 31930), (620, 30694), (745, 25544), (824, 23095), (1030, 18476), (1192, 15965), (1240, 15347), (1490, 12772), (2060, 9238), (2980, 6386), (3193, 5960), (4120, 4619)]