255261440

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{919}}^1$

素因数の和:978

約数の個数: 144

約数和(自身を含む): 722104320

約数和(自身を除く): 466842880

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, 868, 896, 919, 992, 1085, 1120, 1240, 1280, 1736, 1792, 1838, 1984, 2170, 2240, 2480, 3472, 3676, 3968, 4340, 4480, 4595, 4960, 6433, 6944, 7352, 7936, 8680, 8960, 9190, 9920, 12866, 13888, 14704, 17360, 18380, 19840, 25732, 27776, 28489, 29408, 32165, 34720, 36760, 39680, 51464, 55552, 56978, 58816, 64330, 69440, 73520, 102928, 113956, 117632, 128660, 138880, 142445, 147040, 199423, 205856, 227912, 235264, 257320, 277760, 284890, 294080, 398846, 411712, 455824, 514640, 569780, 588160, 797692, 823424, 911648, 997115, 1029280, 1139560, 1176320, 1595384, 1646848, 1823296, 1994230, 2058560, 2279120, 3190768, 3646592, 3988460, 4117120, 4558240, 6381536, 7293184, 7976920, 8234240, 9116480, 12763072, 15953840, 18232960, 25526144, 31907680, 36465920, 51052288, 63815360, 127630720, 255261440]

約数ペア:

[(1, 255261440), (2, 127630720), (4, 63815360), (5, 51052288), (7, 36465920), (8, 31907680), (10, 25526144), (14, 18232960), (16, 15953840), (20, 12763072), (28, 9116480), (31, 8234240), (32, 7976920), (35, 7293184), (40, 6381536), (56, 4558240), (62, 4117120), (64, 3988460), (70, 3646592), (80, 3190768), (112, 2279120), (124, 2058560), (128, 1994230), (140, 1823296), (155, 1646848), (160, 1595384), (217, 1176320), (224, 1139560), (248, 1029280), (256, 997115), (280, 911648), (310, 823424), (320, 797692), (434, 588160), (448, 569780), (496, 514640), (560, 455824), (620, 411712), (640, 398846), (868, 294080), (896, 284890), (919, 277760), (992, 257320), (1085, 235264), (1120, 227912), (1240, 205856), (1280, 199423), (1736, 147040), (1792, 142445), (1838, 138880), (1984, 128660), (2170, 117632), (2240, 113956), (2480, 102928), (3472, 73520), (3676, 69440), (3968, 64330), (4340, 58816), (4480, 56978), (4595, 55552), (4960, 51464), (6433, 39680), (6944, 36760), (7352, 34720), (7936, 32165), (8680, 29408), (8960, 28489), (9190, 27776), (9920, 25732), (12866, 19840), (13888, 18380), (14704, 17360)]