24720640

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:148

約数の個数: 144

約数和(自身を含む): 70640640

約数和(自身を除く): 45920000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 89, 112, 124, 128, 140, 155, 160, 178, 217, 224, 248, 256, 280, 310, 320, 356, 434, 445, 448, 496, 560, 620, 623, 640, 712, 868, 890, 896, 992, 1085, 1120, 1240, 1246, 1280, 1424, 1736, 1780, 1792, 1984, 2170, 2240, 2480, 2492, 2759, 2848, 3115, 3472, 3560, 3968, 4340, 4480, 4960, 4984, 5518, 5696, 6230, 6944, 7120, 7936, 8680, 8960, 9920, 9968, 11036, 11392, 12460, 13795, 13888, 14240, 17360, 19313, 19840, 19936, 22072, 22784, 24920, 27590, 27776, 28480, 34720, 38626, 39680, 39872, 44144, 49840, 55180, 55552, 56960, 69440, 77252, 79744, 88288, 96565, 99680, 110360, 113920, 138880, 154504, 159488, 176576, 193130, 199360, 220720, 277760, 309008, 353152, 386260, 398720, 441440, 618016, 706304, 772520, 797440, 882880, 1236032, 1545040, 1765760, 2472064, 3090080, 3531520, 4944128, 6180160, 12360320, 24720640]

約数ペア:

[(1, 24720640), (2, 12360320), (4, 6180160), (5, 4944128), (7, 3531520), (8, 3090080), (10, 2472064), (14, 1765760), (16, 1545040), (20, 1236032), (28, 882880), (31, 797440), (32, 772520), (35, 706304), (40, 618016), (56, 441440), (62, 398720), (64, 386260), (70, 353152), (80, 309008), (89, 277760), (112, 220720), (124, 199360), (128, 193130), (140, 176576), (155, 159488), (160, 154504), (178, 138880), (217, 113920), (224, 110360), (248, 99680), (256, 96565), (280, 88288), (310, 79744), (320, 77252), (356, 69440), (434, 56960), (445, 55552), (448, 55180), (496, 49840), (560, 44144), (620, 39872), (623, 39680), (640, 38626), (712, 34720), (868, 28480), (890, 27776), (896, 27590), (992, 24920), (1085, 22784), (1120, 22072), (1240, 19936), (1246, 19840), (1280, 19313), (1424, 17360), (1736, 14240), (1780, 13888), (1792, 13795), (1984, 12460), (2170, 11392), (2240, 11036), (2480, 9968), (2492, 9920), (2759, 8960), (2848, 8680), (3115, 7936), (3472, 7120), (3560, 6944), (3968, 6230), (4340, 5696), (4480, 5518), (4960, 4984)]