7439640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1$

素因数の和:297

約数の個数: 128

約数和(自身を含む): 25401600

約数和(自身を除く): 17961960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 19, 20, 24, 26, 30, 38, 39, 40, 52, 57, 60, 65, 76, 78, 95, 104, 114, 120, 130, 152, 156, 190, 195, 228, 247, 251, 260, 285, 312, 380, 390, 456, 494, 502, 520, 570, 741, 753, 760, 780, 988, 1004, 1140, 1235, 1255, 1482, 1506, 1560, 1976, 2008, 2280, 2470, 2510, 2964, 3012, 3263, 3705, 3765, 4769, 4940, 5020, 5928, 6024, 6526, 7410, 7530, 9538, 9789, 9880, 10040, 13052, 14307, 14820, 15060, 16315, 19076, 19578, 23845, 26104, 28614, 29640, 30120, 32630, 38152, 39156, 47690, 48945, 57228, 61997, 65260, 71535, 78312, 95380, 97890, 114456, 123994, 130520, 143070, 185991, 190760, 195780, 247988, 286140, 309985, 371982, 391560, 495976, 572280, 619970, 743964, 929955, 1239940, 1487928, 1859910, 2479880, 3719820, 7439640]

約数ペア:

[(1, 7439640), (2, 3719820), (3, 2479880), (4, 1859910), (5, 1487928), (6, 1239940), (8, 929955), (10, 743964), (12, 619970), (13, 572280), (15, 495976), (19, 391560), (20, 371982), (24, 309985), (26, 286140), (30, 247988), (38, 195780), (39, 190760), (40, 185991), (52, 143070), (57, 130520), (60, 123994), (65, 114456), (76, 97890), (78, 95380), (95, 78312), (104, 71535), (114, 65260), (120, 61997), (130, 57228), (152, 48945), (156, 47690), (190, 39156), (195, 38152), (228, 32630), (247, 30120), (251, 29640), (260, 28614), (285, 26104), (312, 23845), (380, 19578), (390, 19076), (456, 16315), (494, 15060), (502, 14820), (520, 14307), (570, 13052), (741, 10040), (753, 9880), (760, 9789), (780, 9538), (988, 7530), (1004, 7410), (1140, 6526), (1235, 6024), (1255, 5928), (1482, 5020), (1506, 4940), (1560, 4769), (1976, 3765), (2008, 3705), (2280, 3263), (2470, 3012), (2510, 2964)]