1556227960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{35401}}^1$

素因数の和:35576

約数の個数: 64

約数和(自身を含む): 4027331520

約数和(自身を除く): 2471103560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 157, 280, 314, 628, 785, 1099, 1256, 1570, 2198, 3140, 4396, 5495, 6280, 8792, 10990, 21980, 35401, 43960, 70802, 141604, 177005, 247807, 283208, 354010, 495614, 708020, 991228, 1239035, 1416040, 1982456, 2478070, 4956140, 5557957, 9912280, 11115914, 22231828, 27789785, 38905699, 44463656, 55579570, 77811398, 111159140, 155622796, 194528495, 222318280, 311245592, 389056990, 778113980, 1556227960]

約数ペア:

[(1, 1556227960), (2, 778113980), (4, 389056990), (5, 311245592), (7, 222318280), (8, 194528495), (10, 155622796), (14, 111159140), (20, 77811398), (28, 55579570), (35, 44463656), (40, 38905699), (56, 27789785), (70, 22231828), (140, 11115914), (157, 9912280), (280, 5557957), (314, 4956140), (628, 2478070), (785, 1982456), (1099, 1416040), (1256, 1239035), (1570, 991228), (2198, 708020), (3140, 495614), (4396, 354010), (5495, 283208), (6280, 247807), (8792, 177005), (10990, 141604), (21980, 70802), (35401, 43960)]