215438720

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2531}}^1$

素因数の和:2576

約数の個数: 128

約数和(自身を含む): 619833600

約数和(自身を除く): 404394880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 56, 64, 70, 76, 80, 95, 112, 128, 133, 140, 152, 160, 190, 224, 266, 280, 304, 320, 380, 448, 532, 560, 608, 640, 665, 760, 896, 1064, 1120, 1216, 1330, 1520, 2128, 2240, 2432, 2531, 2660, 3040, 4256, 4480, 5062, 5320, 6080, 8512, 10124, 10640, 12160, 12655, 17024, 17717, 20248, 21280, 25310, 35434, 40496, 42560, 48089, 50620, 70868, 80992, 85120, 88585, 96178, 101240, 141736, 161984, 177170, 192356, 202480, 240445, 283472, 323968, 336623, 354340, 384712, 404960, 480890, 566944, 673246, 708680, 769424, 809920, 961780, 1133888, 1346492, 1417360, 1538848, 1619840, 1683115, 1923560, 2267776, 2692984, 2834720, 3077696, 3366230, 3847120, 5385968, 5669440, 6155392, 6732460, 7694240, 10771936, 11338880, 13464920, 15388480, 21543872, 26929840, 30776960, 43087744, 53859680, 107719360, 215438720]

約数ペア:

[(1, 215438720), (2, 107719360), (4, 53859680), (5, 43087744), (7, 30776960), (8, 26929840), (10, 21543872), (14, 15388480), (16, 13464920), (19, 11338880), (20, 10771936), (28, 7694240), (32, 6732460), (35, 6155392), (38, 5669440), (40, 5385968), (56, 3847120), (64, 3366230), (70, 3077696), (76, 2834720), (80, 2692984), (95, 2267776), (112, 1923560), (128, 1683115), (133, 1619840), (140, 1538848), (152, 1417360), (160, 1346492), (190, 1133888), (224, 961780), (266, 809920), (280, 769424), (304, 708680), (320, 673246), (380, 566944), (448, 480890), (532, 404960), (560, 384712), (608, 354340), (640, 336623), (665, 323968), (760, 283472), (896, 240445), (1064, 202480), (1120, 192356), (1216, 177170), (1330, 161984), (1520, 141736), (2128, 101240), (2240, 96178), (2432, 88585), (2531, 85120), (2660, 80992), (3040, 70868), (4256, 50620), (4480, 48089), (5062, 42560), (5320, 40496), (6080, 35434), (8512, 25310), (10124, 21280), (10640, 20248), (12160, 17717), (12655, 17024)]