31249260

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{1181}}^1$

素因数の和:1213

約数の個数: 144

約数和(自身を含む): 113188320

約数和(自身を除く): 81939060

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 49, 54, 60, 63, 70, 84, 90, 98, 105, 108, 126, 135, 140, 147, 180, 189, 196, 210, 245, 252, 270, 294, 315, 378, 420, 441, 490, 540, 588, 630, 735, 756, 882, 945, 980, 1181, 1260, 1323, 1470, 1764, 1890, 2205, 2362, 2646, 2940, 3543, 3780, 4410, 4724, 5292, 5905, 6615, 7086, 8267, 8820, 10629, 11810, 13230, 14172, 16534, 17715, 21258, 23620, 24801, 26460, 31887, 33068, 35430, 41335, 42516, 49602, 53145, 57869, 63774, 70860, 74403, 82670, 99204, 106290, 115738, 124005, 127548, 148806, 159435, 165340, 173607, 212580, 223209, 231476, 248010, 289345, 297612, 318870, 347214, 372015, 446418, 496020, 520821, 578690, 637740, 694428, 744030, 868035, 892836, 1041642, 1116045, 1157380, 1488060, 1562463, 1736070, 2083284, 2232090, 2604105, 3124926, 3472140, 4464180, 5208210, 6249852, 7812315, 10416420, 15624630, 31249260]

約数ペア:

[(1, 31249260), (2, 15624630), (3, 10416420), (4, 7812315), (5, 6249852), (6, 5208210), (7, 4464180), (9, 3472140), (10, 3124926), (12, 2604105), (14, 2232090), (15, 2083284), (18, 1736070), (20, 1562463), (21, 1488060), (27, 1157380), (28, 1116045), (30, 1041642), (35, 892836), (36, 868035), (42, 744030), (45, 694428), (49, 637740), (54, 578690), (60, 520821), (63, 496020), (70, 446418), (84, 372015), (90, 347214), (98, 318870), (105, 297612), (108, 289345), (126, 248010), (135, 231476), (140, 223209), (147, 212580), (180, 173607), (189, 165340), (196, 159435), (210, 148806), (245, 127548), (252, 124005), (270, 115738), (294, 106290), (315, 99204), (378, 82670), (420, 74403), (441, 70860), (490, 63774), (540, 57869), (588, 53145), (630, 49602), (735, 42516), (756, 41335), (882, 35430), (945, 33068), (980, 31887), (1181, 26460), (1260, 24801), (1323, 23620), (1470, 21258), (1764, 17715), (1890, 16534), (2205, 14172), (2362, 13230), (2646, 11810), (2940, 10629), (3543, 8820), (3780, 8267), (4410, 7086), (4724, 6615), (5292, 5905)]