256443240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{307}}^1\times {\mathrm{6961}}^1$

素因数の和:7282

約数の個数: 64

約数和(自身を含む): 771946560

約数和(自身を除く): 515503320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 307, 614, 921, 1228, 1535, 1842, 2456, 3070, 3684, 4605, 6140, 6961, 7368, 9210, 12280, 13922, 18420, 20883, 27844, 34805, 36840, 41766, 55688, 69610, 83532, 104415, 139220, 167064, 208830, 278440, 417660, 835320, 2137027, 4274054, 6411081, 8548108, 10685135, 12822162, 17096216, 21370270, 25644324, 32055405, 42740540, 51288648, 64110810, 85481080, 128221620, 256443240]

約数ペア:

[(1, 256443240), (2, 128221620), (3, 85481080), (4, 64110810), (5, 51288648), (6, 42740540), (8, 32055405), (10, 25644324), (12, 21370270), (15, 17096216), (20, 12822162), (24, 10685135), (30, 8548108), (40, 6411081), (60, 4274054), (120, 2137027), (307, 835320), (614, 417660), (921, 278440), (1228, 208830), (1535, 167064), (1842, 139220), (2456, 104415), (3070, 83532), (3684, 69610), (4605, 55688), (6140, 41766), (6961, 36840), (7368, 34805), (9210, 27844), (12280, 20883), (13922, 18420)]