215680640

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1553}}^1$

素因数の和:1610

約数の個数: 128

約数和(自身を含む): 608670720

約数和(自身を除く): 392990080

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, 1553, 1736, 1984, 2170, 2240, 2480, 3106, 3472, 3968, 4340, 4480, 4960, 6212, 6944, 7765, 8680, 9920, 10871, 12424, 13888, 15530, 17360, 19840, 21742, 24848, 27776, 31060, 34720, 43484, 48143, 49696, 54355, 62120, 69440, 86968, 96286, 99392, 108710, 124240, 138880, 173936, 192572, 198784, 217420, 240715, 248480, 337001, 347872, 385144, 434840, 481430, 496960, 674002, 695744, 770288, 869680, 962860, 993920, 1348004, 1391488, 1540576, 1685005, 1739360, 1925720, 2696008, 3081152, 3370010, 3478720, 3851440, 5392016, 6162304, 6740020, 6957440, 7702880, 10784032, 13480040, 15405760, 21568064, 26960080, 30811520, 43136128, 53920160, 107840320, 215680640]

約数ペア:

[(1, 215680640), (2, 107840320), (4, 53920160), (5, 43136128), (7, 30811520), (8, 26960080), (10, 21568064), (14, 15405760), (16, 13480040), (20, 10784032), (28, 7702880), (31, 6957440), (32, 6740020), (35, 6162304), (40, 5392016), (56, 3851440), (62, 3478720), (64, 3370010), (70, 3081152), (80, 2696008), (112, 1925720), (124, 1739360), (128, 1685005), (140, 1540576), (155, 1391488), (160, 1348004), (217, 993920), (224, 962860), (248, 869680), (280, 770288), (310, 695744), (320, 674002), (434, 496960), (448, 481430), (496, 434840), (560, 385144), (620, 347872), (640, 337001), (868, 248480), (896, 240715), (992, 217420), (1085, 198784), (1120, 192572), (1240, 173936), (1553, 138880), (1736, 124240), (1984, 108710), (2170, 99392), (2240, 96286), (2480, 86968), (3106, 69440), (3472, 62120), (3968, 54355), (4340, 49696), (4480, 48143), (4960, 43484), (6212, 34720), (6944, 31060), (7765, 27776), (8680, 24848), (9920, 21742), (10871, 19840), (12424, 17360), (13888, 15530)]