421289920

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1801}}^1$

素因数の和:1878

約数の個数: 112

約数和(自身を含む): 1087514208

約数和(自身を除く): 666224288

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 43, 64, 68, 80, 85, 86, 136, 160, 170, 172, 215, 272, 320, 340, 344, 430, 544, 680, 688, 731, 860, 1088, 1360, 1376, 1462, 1720, 1801, 2720, 2752, 2924, 3440, 3602, 3655, 5440, 5848, 6880, 7204, 7310, 9005, 11696, 13760, 14408, 14620, 18010, 23392, 28816, 29240, 30617, 36020, 46784, 57632, 58480, 61234, 72040, 77443, 115264, 116960, 122468, 144080, 153085, 154886, 233920, 244936, 288160, 306170, 309772, 387215, 489872, 576320, 612340, 619544, 774430, 979744, 1224680, 1239088, 1316531, 1548860, 1959488, 2449360, 2478176, 2633062, 3097720, 4898720, 4956352, 5266124, 6195440, 6582655, 9797440, 10532248, 12390880, 13165310, 21064496, 24781760, 26330620, 42128992, 52661240, 84257984, 105322480, 210644960, 421289920]

約数ペア:

[(1, 421289920), (2, 210644960), (4, 105322480), (5, 84257984), (8, 52661240), (10, 42128992), (16, 26330620), (17, 24781760), (20, 21064496), (32, 13165310), (34, 12390880), (40, 10532248), (43, 9797440), (64, 6582655), (68, 6195440), (80, 5266124), (85, 4956352), (86, 4898720), (136, 3097720), (160, 2633062), (170, 2478176), (172, 2449360), (215, 1959488), (272, 1548860), (320, 1316531), (340, 1239088), (344, 1224680), (430, 979744), (544, 774430), (680, 619544), (688, 612340), (731, 576320), (860, 489872), (1088, 387215), (1360, 309772), (1376, 306170), (1462, 288160), (1720, 244936), (1801, 233920), (2720, 154886), (2752, 153085), (2924, 144080), (3440, 122468), (3602, 116960), (3655, 115264), (5440, 77443), (5848, 72040), (6880, 61234), (7204, 58480), (7310, 57632), (9005, 46784), (11696, 36020), (13760, 30617), (14408, 29240), (14620, 28816), (18010, 23392)]