218597120

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{787}}^1$

素因数の和:846

約数の個数: 144

約数和(自身を含む): 618498048

約数和(自身を除く): 399900928

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 128, 140, 155, 160, 217, 224, 248, 256, 280, 310, 320, 434, 448, 496, 560, 620, 640, 787, 868, 896, 992, 1085, 1120, 1240, 1280, 1574, 1736, 1792, 1984, 2170, 2240, 2480, 3148, 3472, 3935, 3968, 4340, 4480, 4960, 5509, 6296, 6944, 7870, 7936, 8680, 8960, 9920, 11018, 12592, 13888, 15740, 17360, 19840, 22036, 24397, 25184, 27545, 27776, 31480, 34720, 39680, 44072, 48794, 50368, 55090, 55552, 62960, 69440, 88144, 97588, 100736, 110180, 121985, 125920, 138880, 170779, 176288, 195176, 201472, 220360, 243970, 251840, 277760, 341558, 352576, 390352, 440720, 487940, 503680, 683116, 705152, 780704, 853895, 881440, 975880, 1007360, 1366232, 1410304, 1561408, 1707790, 1762880, 1951760, 2732464, 3122816, 3415580, 3525760, 3903520, 5464928, 6245632, 6831160, 7051520, 7807040, 10929856, 13662320, 15614080, 21859712, 27324640, 31228160, 43719424, 54649280, 109298560, 218597120]

約数ペア:

[(1, 218597120), (2, 109298560), (4, 54649280), (5, 43719424), (7, 31228160), (8, 27324640), (10, 21859712), (14, 15614080), (16, 13662320), (20, 10929856), (28, 7807040), (31, 7051520), (32, 6831160), (35, 6245632), (40, 5464928), (56, 3903520), (62, 3525760), (64, 3415580), (70, 3122816), (80, 2732464), (112, 1951760), (124, 1762880), (128, 1707790), (140, 1561408), (155, 1410304), (160, 1366232), (217, 1007360), (224, 975880), (248, 881440), (256, 853895), (280, 780704), (310, 705152), (320, 683116), (434, 503680), (448, 487940), (496, 440720), (560, 390352), (620, 352576), (640, 341558), (787, 277760), (868, 251840), (896, 243970), (992, 220360), (1085, 201472), (1120, 195176), (1240, 176288), (1280, 170779), (1574, 138880), (1736, 125920), (1792, 121985), (1984, 110180), (2170, 100736), (2240, 97588), (2480, 88144), (3148, 69440), (3472, 62960), (3935, 55552), (3968, 55090), (4340, 50368), (4480, 48794), (4960, 44072), (5509, 39680), (6296, 34720), (6944, 31480), (7870, 27776), (7936, 27545), (8680, 25184), (8960, 24397), (9920, 22036), (11018, 19840), (12592, 17360), (13888, 15740)]