1921198720

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{9973}}^1$

素因数の和:10042

約数の個数: 128

約数和(自身を含む): 5371597440

約数和(自身を除く): 3450398720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 43, 56, 64, 70, 80, 86, 112, 128, 140, 160, 172, 215, 224, 280, 301, 320, 344, 430, 448, 560, 602, 640, 688, 860, 896, 1120, 1204, 1376, 1505, 1720, 2240, 2408, 2752, 3010, 3440, 4480, 4816, 5504, 6020, 6880, 9632, 9973, 12040, 13760, 19264, 19946, 24080, 27520, 38528, 39892, 48160, 49865, 69811, 79784, 96320, 99730, 139622, 159568, 192640, 199460, 279244, 319136, 349055, 398920, 428839, 558488, 638272, 698110, 797840, 857678, 1116976, 1276544, 1396220, 1595680, 1715356, 2144195, 2233952, 2792440, 3001873, 3191360, 3430712, 4288390, 4467904, 5584880, 6003746, 6382720, 6861424, 8576780, 8935808, 11169760, 12007492, 13722848, 15009365, 17153560, 22339520, 24014984, 27445696, 30018730, 34307120, 44679040, 48029968, 54891392, 60037460, 68614240, 96059936, 120074920, 137228480, 192119872, 240149840, 274456960, 384239744, 480299680, 960599360, 1921198720]

約数ペア:

[(1, 1921198720), (2, 960599360), (4, 480299680), (5, 384239744), (7, 274456960), (8, 240149840), (10, 192119872), (14, 137228480), (16, 120074920), (20, 96059936), (28, 68614240), (32, 60037460), (35, 54891392), (40, 48029968), (43, 44679040), (56, 34307120), (64, 30018730), (70, 27445696), (80, 24014984), (86, 22339520), (112, 17153560), (128, 15009365), (140, 13722848), (160, 12007492), (172, 11169760), (215, 8935808), (224, 8576780), (280, 6861424), (301, 6382720), (320, 6003746), (344, 5584880), (430, 4467904), (448, 4288390), (560, 3430712), (602, 3191360), (640, 3001873), (688, 2792440), (860, 2233952), (896, 2144195), (1120, 1715356), (1204, 1595680), (1376, 1396220), (1505, 1276544), (1720, 1116976), (2240, 857678), (2408, 797840), (2752, 698110), (3010, 638272), (3440, 558488), (4480, 428839), (4816, 398920), (5504, 349055), (6020, 319136), (6880, 279244), (9632, 199460), (9973, 192640), (12040, 159568), (13760, 139622), (19264, 99730), (19946, 96320), (24080, 79784), (27520, 69811), (38528, 49865), (39892, 48160)]