1661240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{349}}^1$

素因数の和:384

約数の個数: 64

約数和(自身を含む): 4536000

約数和(自身を除く): 2874760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 119, 136, 140, 170, 238, 280, 340, 349, 476, 595, 680, 698, 952, 1190, 1396, 1745, 2380, 2443, 2792, 3490, 4760, 4886, 5933, 6980, 9772, 11866, 12215, 13960, 19544, 23732, 24430, 29665, 41531, 47464, 48860, 59330, 83062, 97720, 118660, 166124, 207655, 237320, 332248, 415310, 830620, 1661240]

約数ペア:

[(1, 1661240), (2, 830620), (4, 415310), (5, 332248), (7, 237320), (8, 207655), (10, 166124), (14, 118660), (17, 97720), (20, 83062), (28, 59330), (34, 48860), (35, 47464), (40, 41531), (56, 29665), (68, 24430), (70, 23732), (85, 19544), (119, 13960), (136, 12215), (140, 11866), (170, 9772), (238, 6980), (280, 5933), (340, 4886), (349, 4760), (476, 3490), (595, 2792), (680, 2443), (698, 2380), (952, 1745), (1190, 1396)]