25817120

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:155

約数の個数: 144

約数和(自身を含む): 73687320

約数和(自身を除く): 47870200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 37, 40, 49, 56, 70, 74, 80, 89, 98, 112, 140, 148, 160, 178, 185, 196, 224, 245, 259, 280, 296, 356, 370, 392, 445, 490, 518, 560, 592, 623, 712, 740, 784, 890, 980, 1036, 1120, 1184, 1246, 1295, 1424, 1480, 1568, 1780, 1813, 1960, 2072, 2492, 2590, 2848, 2960, 3115, 3293, 3560, 3626, 3920, 4144, 4361, 4984, 5180, 5920, 6230, 6586, 7120, 7252, 7840, 8288, 8722, 9065, 9968, 10360, 12460, 13172, 14240, 14504, 16465, 17444, 18130, 19936, 20720, 21805, 23051, 24920, 26344, 29008, 32930, 34888, 36260, 41440, 43610, 46102, 49840, 52688, 58016, 65860, 69776, 72520, 87220, 92204, 99680, 105376, 115255, 131720, 139552, 145040, 161357, 174440, 184408, 230510, 263440, 290080, 322714, 348880, 368816, 461020, 526880, 645428, 697760, 737632, 806785, 922040, 1290856, 1613570, 1844080, 2581712, 3227140, 3688160, 5163424, 6454280, 12908560, 25817120]

約数ペア:

[(1, 25817120), (2, 12908560), (4, 6454280), (5, 5163424), (7, 3688160), (8, 3227140), (10, 2581712), (14, 1844080), (16, 1613570), (20, 1290856), (28, 922040), (32, 806785), (35, 737632), (37, 697760), (40, 645428), (49, 526880), (56, 461020), (70, 368816), (74, 348880), (80, 322714), (89, 290080), (98, 263440), (112, 230510), (140, 184408), (148, 174440), (160, 161357), (178, 145040), (185, 139552), (196, 131720), (224, 115255), (245, 105376), (259, 99680), (280, 92204), (296, 87220), (356, 72520), (370, 69776), (392, 65860), (445, 58016), (490, 52688), (518, 49840), (560, 46102), (592, 43610), (623, 41440), (712, 36260), (740, 34888), (784, 32930), (890, 29008), (980, 26344), (1036, 24920), (1120, 23051), (1184, 21805), (1246, 20720), (1295, 19936), (1424, 18130), (1480, 17444), (1568, 16465), (1780, 14504), (1813, 14240), (1960, 13172), (2072, 12460), (2492, 10360), (2590, 9968), (2848, 9065), (2960, 8722), (3115, 8288), (3293, 7840), (3560, 7252), (3626, 7120), (3920, 6586), (4144, 6230), (4361, 5920), (4984, 5180)]