402910720

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5077}}^1$

素因数の和:5131

約数の個数: 80

約数和(自身を含む): 997400448

約数和(自身を除く): 594489728

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, 496, 512, 620, 640, 992, 1240, 1280, 1984, 2480, 2560, 3968, 4960, 5077, 7936, 9920, 10154, 15872, 19840, 20308, 25385, 39680, 40616, 50770, 79360, 81232, 101540, 157387, 162464, 203080, 314774, 324928, 406160, 629548, 649856, 786935, 812320, 1259096, 1299712, 1573870, 1624640, 2518192, 2599424, 3147740, 3249280, 5036384, 6295480, 6498560, 10072768, 12590960, 12997120, 20145536, 25181920, 40291072, 50363840, 80582144, 100727680, 201455360, 402910720]

約数ペア:

[(1, 402910720), (2, 201455360), (4, 100727680), (5, 80582144), (8, 50363840), (10, 40291072), (16, 25181920), (20, 20145536), (31, 12997120), (32, 12590960), (40, 10072768), (62, 6498560), (64, 6295480), (80, 5036384), (124, 3249280), (128, 3147740), (155, 2599424), (160, 2518192), (248, 1624640), (256, 1573870), (310, 1299712), (320, 1259096), (496, 812320), (512, 786935), (620, 649856), (640, 629548), (992, 406160), (1240, 324928), (1280, 314774), (1984, 203080), (2480, 162464), (2560, 157387), (3968, 101540), (4960, 81232), (5077, 79360), (7936, 50770), (9920, 40616), (10154, 39680), (15872, 25385), (19840, 20308)]