251059940

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{239}}^1\times {\mathrm{991}}^1$

素因数の和:1292

約数の個数: 48

約数和(自身を含む): 539965440

約数和(自身を除く): 288905500

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 239, 265, 478, 530, 956, 991, 1060, 1195, 1982, 2390, 3964, 4780, 4955, 9910, 12667, 19820, 25334, 50668, 52523, 63335, 105046, 126670, 210092, 236849, 253340, 262615, 473698, 525230, 947396, 1050460, 1184245, 2368490, 4736980, 12552997, 25105994, 50211988, 62764985, 125529970, 251059940]

約数ペア:

[(1, 251059940), (2, 125529970), (4, 62764985), (5, 50211988), (10, 25105994), (20, 12552997), (53, 4736980), (106, 2368490), (212, 1184245), (239, 1050460), (265, 947396), (478, 525230), (530, 473698), (956, 262615), (991, 253340), (1060, 236849), (1195, 210092), (1982, 126670), (2390, 105046), (3964, 63335), (4780, 52523), (4955, 50668), (9910, 25334), (12667, 19820)]