78298640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1571}}^1$

素因数の和:1680

約数の個数: 80

約数和(自身を含む): 210522240

約数和(自身を除く): 132223600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 89, 112, 140, 178, 280, 356, 445, 560, 623, 712, 890, 1246, 1424, 1571, 1780, 2492, 3115, 3142, 3560, 4984, 6230, 6284, 7120, 7855, 9968, 10997, 12460, 12568, 15710, 21994, 24920, 25136, 31420, 43988, 49840, 54985, 62840, 87976, 109970, 125680, 139819, 175952, 219940, 279638, 439880, 559276, 699095, 879760, 978733, 1118552, 1398190, 1957466, 2237104, 2796380, 3914932, 4893665, 5592760, 7829864, 9787330, 11185520, 15659728, 19574660, 39149320, 78298640]

約数ペア:

[(1, 78298640), (2, 39149320), (4, 19574660), (5, 15659728), (7, 11185520), (8, 9787330), (10, 7829864), (14, 5592760), (16, 4893665), (20, 3914932), (28, 2796380), (35, 2237104), (40, 1957466), (56, 1398190), (70, 1118552), (80, 978733), (89, 879760), (112, 699095), (140, 559276), (178, 439880), (280, 279638), (356, 219940), (445, 175952), (560, 139819), (623, 125680), (712, 109970), (890, 87976), (1246, 62840), (1424, 54985), (1571, 49840), (1780, 43988), (2492, 31420), (3115, 25136), (3142, 24920), (3560, 21994), (4984, 15710), (6230, 12568), (6284, 12460), (7120, 10997), (7855, 9968)]