207897160

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{389}}^1\times {\mathrm{431}}^1$

素因数の和:862

約数の個数: 64

約数和(自身を含む): 485222400

約数和(自身を除く): 277325240

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 389, 431, 620, 778, 862, 1240, 1556, 1724, 1945, 2155, 3112, 3448, 3890, 4310, 7780, 8620, 12059, 13361, 15560, 17240, 24118, 26722, 48236, 53444, 60295, 66805, 96472, 106888, 120590, 133610, 167659, 241180, 267220, 335318, 482360, 534440, 670636, 838295, 1341272, 1676590, 3353180, 5197429, 6706360, 10394858, 20789716, 25987145, 41579432, 51974290, 103948580, 207897160]

約数ペア:

[(1, 207897160), (2, 103948580), (4, 51974290), (5, 41579432), (8, 25987145), (10, 20789716), (20, 10394858), (31, 6706360), (40, 5197429), (62, 3353180), (124, 1676590), (155, 1341272), (248, 838295), (310, 670636), (389, 534440), (431, 482360), (620, 335318), (778, 267220), (862, 241180), (1240, 167659), (1556, 133610), (1724, 120590), (1945, 106888), (2155, 96472), (3112, 66805), (3448, 60295), (3890, 53444), (4310, 48236), (7780, 26722), (8620, 24118), (12059, 17240), (13361, 15560)]