256919640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{125941}}^1$

素因数の和:125972

約数の個数: 64

約数和(自身を含む): 816104160

約数和(自身を除く): 559184520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 125941, 251882, 377823, 503764, 629705, 755646, 1007528, 1259410, 1511292, 1889115, 2140997, 2518820, 3022584, 3778230, 4281994, 5037640, 6422991, 7556460, 8563988, 10704985, 12845982, 15112920, 17127976, 21409970, 25691964, 32114955, 42819940, 51383928, 64229910, 85639880, 128459820, 256919640]

約数ペア:

[(1, 256919640), (2, 128459820), (3, 85639880), (4, 64229910), (5, 51383928), (6, 42819940), (8, 32114955), (10, 25691964), (12, 21409970), (15, 17127976), (17, 15112920), (20, 12845982), (24, 10704985), (30, 8563988), (34, 7556460), (40, 6422991), (51, 5037640), (60, 4281994), (68, 3778230), (85, 3022584), (102, 2518820), (120, 2140997), (136, 1889115), (170, 1511292), (204, 1259410), (255, 1007528), (340, 755646), (408, 629705), (510, 503764), (680, 377823), (1020, 251882), (2040, 125941)]