256874240

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{28669}}^1$

素因数の和:28697

約数の個数: 72

約数和(自身を含む): 703217760

約数和(自身を除く): 446343520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2240, 4480, 8960, 28669, 57338, 114676, 143345, 200683, 229352, 286690, 401366, 458704, 573380, 802732, 917408, 1003415, 1146760, 1605464, 1834816, 2006830, 2293520, 3210928, 3669632, 4013660, 4587040, 6421856, 7339264, 8027320, 9174080, 12843712, 16054640, 18348160, 25687424, 32109280, 36696320, 51374848, 64218560, 128437120, 256874240]

約数ペア:

[(1, 256874240), (2, 128437120), (4, 64218560), (5, 51374848), (7, 36696320), (8, 32109280), (10, 25687424), (14, 18348160), (16, 16054640), (20, 12843712), (28, 9174080), (32, 8027320), (35, 7339264), (40, 6421856), (56, 4587040), (64, 4013660), (70, 3669632), (80, 3210928), (112, 2293520), (128, 2006830), (140, 1834816), (160, 1605464), (224, 1146760), (256, 1003415), (280, 917408), (320, 802732), (448, 573380), (560, 458704), (640, 401366), (896, 286690), (1120, 229352), (1280, 200683), (1792, 143345), (2240, 114676), (4480, 57338), (8960, 28669)]