278323983

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1$

素因数の和:245

約数の個数: 96

約数和(自身を含む): 513257472

約数和(自身を除く): 234933489

約数列:

[1, 3, 7, 9, 17, 21, 31, 51, 63, 83, 93, 101, 119, 153, 217, 249, 279, 303, 357, 527, 581, 651, 707, 747, 909, 1071, 1411, 1581, 1717, 1743, 1953, 2121, 2573, 3131, 3689, 4233, 4743, 5151, 5229, 6363, 7719, 8383, 9393, 9877, 11067, 12019, 12699, 15453, 18011, 21917, 23157, 25149, 28179, 29631, 33201, 36057, 43741, 53227, 54033, 58681, 65751, 75447, 88893, 108171, 131223, 142511, 159681, 162099, 176043, 197253, 259873, 306187, 372589, 393669, 427533, 479043, 528129, 779619, 918561, 997577, 1117767, 1282599, 1819111, 2338857, 2755683, 2992731, 3353301, 4417841, 5457333, 8978193, 13253523, 16371999, 30924887, 39760569, 92774661, 278323983]

約数ペア:

[(1, 278323983), (3, 92774661), (7, 39760569), (9, 30924887), (17, 16371999), (21, 13253523), (31, 8978193), (51, 5457333), (63, 4417841), (83, 3353301), (93, 2992731), (101, 2755683), (119, 2338857), (153, 1819111), (217, 1282599), (249, 1117767), (279, 997577), (303, 918561), (357, 779619), (527, 528129), (581, 479043), (651, 427533), (707, 393669), (747, 372589), (909, 306187), (1071, 259873), (1411, 197253), (1581, 176043), (1717, 162099), (1743, 159681), (1953, 142511), (2121, 131223), (2573, 108171), (3131, 88893), (3689, 75447), (4233, 65751), (4743, 58681), (5151, 54033), (5229, 53227), (6363, 43741), (7719, 36057), (8383, 33201), (9393, 29631), (9877, 28179), (11067, 25149), (12019, 23157), (12699, 21917), (15453, 18011)]