31514080

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:276

約数の個数: 96

約数和(自身を含む): 81496800

約数和(自身を除く): 49982720

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 109, 130, 139, 160, 208, 218, 260, 278, 416, 436, 520, 545, 556, 695, 872, 1040, 1090, 1112, 1390, 1417, 1744, 1807, 2080, 2180, 2224, 2780, 2834, 3488, 3614, 4360, 4448, 5560, 5668, 7085, 7228, 8720, 9035, 11120, 11336, 14170, 14456, 15151, 17440, 18070, 22240, 22672, 28340, 28912, 30302, 36140, 45344, 56680, 57824, 60604, 72280, 75755, 113360, 121208, 144560, 151510, 196963, 226720, 242416, 289120, 303020, 393926, 484832, 606040, 787852, 984815, 1212080, 1575704, 1969630, 2424160, 3151408, 3939260, 6302816, 7878520, 15757040, 31514080]

約数ペア:

[(1, 31514080), (2, 15757040), (4, 7878520), (5, 6302816), (8, 3939260), (10, 3151408), (13, 2424160), (16, 1969630), (20, 1575704), (26, 1212080), (32, 984815), (40, 787852), (52, 606040), (65, 484832), (80, 393926), (104, 303020), (109, 289120), (130, 242416), (139, 226720), (160, 196963), (208, 151510), (218, 144560), (260, 121208), (278, 113360), (416, 75755), (436, 72280), (520, 60604), (545, 57824), (556, 56680), (695, 45344), (872, 36140), (1040, 30302), (1090, 28912), (1112, 28340), (1390, 22672), (1417, 22240), (1744, 18070), (1807, 17440), (2080, 15151), (2180, 14456), (2224, 14170), (2780, 11336), (2834, 11120), (3488, 9035), (3614, 8720), (4360, 7228), (4448, 7085), (5560, 5668)]