31770120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:235

約数の個数: 128

約数和(自身を含む): 100362240

約数和(自身を除く): 68592120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 47, 60, 86, 94, 120, 129, 131, 141, 172, 188, 215, 235, 258, 262, 282, 344, 376, 393, 430, 470, 516, 524, 564, 645, 655, 705, 786, 860, 940, 1032, 1048, 1128, 1290, 1310, 1410, 1572, 1720, 1880, 1965, 2021, 2580, 2620, 2820, 3144, 3930, 4042, 5160, 5240, 5633, 5640, 6063, 6157, 7860, 8084, 10105, 11266, 12126, 12314, 15720, 16168, 16899, 18471, 20210, 22532, 24252, 24628, 28165, 30315, 30785, 33798, 36942, 40420, 45064, 48504, 49256, 56330, 60630, 61570, 67596, 73884, 80840, 84495, 92355, 112660, 121260, 123140, 135192, 147768, 168990, 184710, 225320, 242520, 246280, 264751, 337980, 369420, 529502, 675960, 738840, 794253, 1059004, 1323755, 1588506, 2118008, 2647510, 3177012, 3971265, 5295020, 6354024, 7942530, 10590040, 15885060, 31770120]

約数ペア:

[(1, 31770120), (2, 15885060), (3, 10590040), (4, 7942530), (5, 6354024), (6, 5295020), (8, 3971265), (10, 3177012), (12, 2647510), (15, 2118008), (20, 1588506), (24, 1323755), (30, 1059004), (40, 794253), (43, 738840), (47, 675960), (60, 529502), (86, 369420), (94, 337980), (120, 264751), (129, 246280), (131, 242520), (141, 225320), (172, 184710), (188, 168990), (215, 147768), (235, 135192), (258, 123140), (262, 121260), (282, 112660), (344, 92355), (376, 84495), (393, 80840), (430, 73884), (470, 67596), (516, 61570), (524, 60630), (564, 56330), (645, 49256), (655, 48504), (705, 45064), (786, 40420), (860, 36942), (940, 33798), (1032, 30785), (1048, 30315), (1128, 28165), (1290, 24628), (1310, 24252), (1410, 22532), (1572, 20210), (1720, 18471), (1880, 16899), (1965, 16168), (2021, 15720), (2580, 12314), (2620, 12126), (2820, 11266), (3144, 10105), (3930, 8084), (4042, 7860), (5160, 6157), (5240, 6063), (5633, 5640)]