243456640

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1753}}^1$

素因数の和:1810

約数の個数: 128

約数和(自身を含む): 687006720

約数和(自身を除く): 443550080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 112, 124, 128, 140, 155, 160, 217, 224, 248, 280, 310, 320, 434, 448, 496, 560, 620, 640, 868, 896, 992, 1085, 1120, 1240, 1736, 1753, 1984, 2170, 2240, 2480, 3472, 3506, 3968, 4340, 4480, 4960, 6944, 7012, 8680, 8765, 9920, 12271, 13888, 14024, 17360, 17530, 19840, 24542, 27776, 28048, 34720, 35060, 49084, 54343, 56096, 61355, 69440, 70120, 98168, 108686, 112192, 122710, 138880, 140240, 196336, 217372, 224384, 245420, 271715, 280480, 380401, 392672, 434744, 490840, 543430, 560960, 760802, 785344, 869488, 981680, 1086860, 1121920, 1521604, 1570688, 1738976, 1902005, 1963360, 2173720, 3043208, 3477952, 3804010, 3926720, 4347440, 6086416, 6955904, 7608020, 7853440, 8694880, 12172832, 15216040, 17389760, 24345664, 30432080, 34779520, 48691328, 60864160, 121728320, 243456640]

約数ペア:

[(1, 243456640), (2, 121728320), (4, 60864160), (5, 48691328), (7, 34779520), (8, 30432080), (10, 24345664), (14, 17389760), (16, 15216040), (20, 12172832), (28, 8694880), (31, 7853440), (32, 7608020), (35, 6955904), (40, 6086416), (56, 4347440), (62, 3926720), (64, 3804010), (70, 3477952), (80, 3043208), (112, 2173720), (124, 1963360), (128, 1902005), (140, 1738976), (155, 1570688), (160, 1521604), (217, 1121920), (224, 1086860), (248, 981680), (280, 869488), (310, 785344), (320, 760802), (434, 560960), (448, 543430), (496, 490840), (560, 434744), (620, 392672), (640, 380401), (868, 280480), (896, 271715), (992, 245420), (1085, 224384), (1120, 217372), (1240, 196336), (1736, 140240), (1753, 138880), (1984, 122710), (2170, 112192), (2240, 108686), (2480, 98168), (3472, 70120), (3506, 69440), (3968, 61355), (4340, 56096), (4480, 54343), (4960, 49084), (6944, 35060), (7012, 34720), (8680, 28048), (8765, 27776), (9920, 24542), (12271, 19840), (13888, 17530), (14024, 17360)]