138906880

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{419}}^1$

素因数の和:484

約数の個数: 144

約数和(自身を含む): 391466880

約数和(自身を除く): 252560000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 37, 40, 56, 64, 70, 74, 80, 112, 128, 140, 148, 160, 185, 224, 256, 259, 280, 296, 320, 370, 419, 448, 518, 560, 592, 640, 740, 838, 896, 1036, 1120, 1184, 1280, 1295, 1480, 1676, 1792, 2072, 2095, 2240, 2368, 2590, 2933, 2960, 3352, 4144, 4190, 4480, 4736, 5180, 5866, 5920, 6704, 8288, 8380, 8960, 9472, 10360, 11732, 11840, 13408, 14665, 15503, 16576, 16760, 20720, 23464, 23680, 26816, 29330, 31006, 33152, 33520, 41440, 46928, 47360, 53632, 58660, 62012, 66304, 67040, 77515, 82880, 93856, 107264, 108521, 117320, 124024, 134080, 155030, 165760, 187712, 217042, 234640, 248048, 268160, 310060, 331520, 375424, 434084, 469280, 496096, 536320, 542605, 620120, 750848, 868168, 938560, 992192, 1085210, 1240240, 1736336, 1877120, 1984384, 2170420, 2480480, 3472672, 3754240, 3968768, 4340840, 4960960, 6945344, 8681680, 9921920, 13890688, 17363360, 19843840, 27781376, 34726720, 69453440, 138906880]

約数ペア:

[(1, 138906880), (2, 69453440), (4, 34726720), (5, 27781376), (7, 19843840), (8, 17363360), (10, 13890688), (14, 9921920), (16, 8681680), (20, 6945344), (28, 4960960), (32, 4340840), (35, 3968768), (37, 3754240), (40, 3472672), (56, 2480480), (64, 2170420), (70, 1984384), (74, 1877120), (80, 1736336), (112, 1240240), (128, 1085210), (140, 992192), (148, 938560), (160, 868168), (185, 750848), (224, 620120), (256, 542605), (259, 536320), (280, 496096), (296, 469280), (320, 434084), (370, 375424), (419, 331520), (448, 310060), (518, 268160), (560, 248048), (592, 234640), (640, 217042), (740, 187712), (838, 165760), (896, 155030), (1036, 134080), (1120, 124024), (1184, 117320), (1280, 108521), (1295, 107264), (1480, 93856), (1676, 82880), (1792, 77515), (2072, 67040), (2095, 66304), (2240, 62012), (2368, 58660), (2590, 53632), (2933, 47360), (2960, 46928), (3352, 41440), (4144, 33520), (4190, 33152), (4480, 31006), (4736, 29330), (5180, 26816), (5866, 23680), (5920, 23464), (6704, 20720), (8288, 16760), (8380, 16576), (8960, 15503), (9472, 14665), (10360, 13408), (11732, 11840)]