9880010

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:231

約数の個数: 64

約数和(自身を含む): 21841920

約数和(自身を除く): 11961910

約数列:

[1, 2, 5, 7, 10, 14, 29, 31, 35, 58, 62, 70, 145, 155, 157, 203, 217, 290, 310, 314, 406, 434, 785, 899, 1015, 1085, 1099, 1570, 1798, 2030, 2170, 2198, 4495, 4553, 4867, 5495, 6293, 8990, 9106, 9734, 10990, 12586, 22765, 24335, 31465, 31871, 34069, 45530, 48670, 62930, 63742, 68138, 141143, 159355, 170345, 282286, 318710, 340690, 705715, 988001, 1411430, 1976002, 4940005, 9880010]

約数ペア:

[(1, 9880010), (2, 4940005), (5, 1976002), (7, 1411430), (10, 988001), (14, 705715), (29, 340690), (31, 318710), (35, 282286), (58, 170345), (62, 159355), (70, 141143), (145, 68138), (155, 63742), (157, 62930), (203, 48670), (217, 45530), (290, 34069), (310, 31871), (314, 31465), (406, 24335), (434, 22765), (785, 12586), (899, 10990), (1015, 9734), (1085, 9106), (1099, 8990), (1570, 6293), (1798, 5495), (2030, 4867), (2170, 4553), (2198, 4495)]