201531720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{129187}}^1$

素因数の和:129214

約数の個数: 64

約数和(自身を含む): 651107520

約数和(自身を除く): 449575800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 129187, 258374, 387561, 516748, 645935, 775122, 1033496, 1291870, 1550244, 1679431, 1937805, 2583740, 3100488, 3358862, 3875610, 5038293, 5167480, 6717724, 7751220, 8397155, 10076586, 13435448, 15502440, 16794310, 20153172, 25191465, 33588620, 40306344, 50382930, 67177240, 100765860, 201531720]

約数ペア:

[(1, 201531720), (2, 100765860), (3, 67177240), (4, 50382930), (5, 40306344), (6, 33588620), (8, 25191465), (10, 20153172), (12, 16794310), (13, 15502440), (15, 13435448), (20, 10076586), (24, 8397155), (26, 7751220), (30, 6717724), (39, 5167480), (40, 5038293), (52, 3875610), (60, 3358862), (65, 3100488), (78, 2583740), (104, 1937805), (120, 1679431), (130, 1550244), (156, 1291870), (195, 1033496), (260, 775122), (312, 645935), (390, 516748), (520, 387561), (780, 258374), (1560, 129187)]