19482880

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:543

約数の個数: 72

約数和(自身を含む): 48271104

約数和(自身を除く): 28788224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 491, 496, 620, 640, 982, 992, 1240, 1280, 1964, 1984, 2455, 2480, 3928, 3968, 4910, 4960, 7856, 7936, 9820, 9920, 15221, 15712, 19640, 19840, 30442, 31424, 39280, 39680, 60884, 62848, 76105, 78560, 121768, 125696, 152210, 157120, 243536, 304420, 314240, 487072, 608840, 628480, 974144, 1217680, 1948288, 2435360, 3896576, 4870720, 9741440, 19482880]

約数ペア:

[(1, 19482880), (2, 9741440), (4, 4870720), (5, 3896576), (8, 2435360), (10, 1948288), (16, 1217680), (20, 974144), (31, 628480), (32, 608840), (40, 487072), (62, 314240), (64, 304420), (80, 243536), (124, 157120), (128, 152210), (155, 125696), (160, 121768), (248, 78560), (256, 76105), (310, 62848), (320, 60884), (491, 39680), (496, 39280), (620, 31424), (640, 30442), (982, 19840), (992, 19640), (1240, 15712), (1280, 15221), (1964, 9920), (1984, 9820), (2455, 7936), (2480, 7856), (3928, 4960), (3968, 4910)]