25546640

素因数分解:

$2^4\times 5^1\times 7^5\times {\mathrm{19}}^1$

素因数の和:67

約数の個数: 120

約数和(自身を含む): 72941760

約数和(自身を除く): 47395120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 80, 95, 98, 112, 133, 140, 152, 190, 196, 245, 266, 280, 304, 343, 380, 392, 490, 532, 560, 665, 686, 760, 784, 931, 980, 1064, 1330, 1372, 1520, 1715, 1862, 1960, 2128, 2401, 2660, 2744, 3430, 3724, 3920, 4655, 4802, 5320, 5488, 6517, 6860, 7448, 9310, 9604, 10640, 12005, 13034, 13720, 14896, 16807, 18620, 19208, 24010, 26068, 27440, 32585, 33614, 37240, 38416, 45619, 48020, 52136, 65170, 67228, 74480, 84035, 91238, 96040, 104272, 130340, 134456, 168070, 182476, 192080, 228095, 260680, 268912, 319333, 336140, 364952, 456190, 521360, 638666, 672280, 729904, 912380, 1277332, 1344560, 1596665, 1824760, 2554664, 3193330, 3649520, 5109328, 6386660, 12773320, 25546640]

約数ペア:

[(1, 25546640), (2, 12773320), (4, 6386660), (5, 5109328), (7, 3649520), (8, 3193330), (10, 2554664), (14, 1824760), (16, 1596665), (19, 1344560), (20, 1277332), (28, 912380), (35, 729904), (38, 672280), (40, 638666), (49, 521360), (56, 456190), (70, 364952), (76, 336140), (80, 319333), (95, 268912), (98, 260680), (112, 228095), (133, 192080), (140, 182476), (152, 168070), (190, 134456), (196, 130340), (245, 104272), (266, 96040), (280, 91238), (304, 84035), (343, 74480), (380, 67228), (392, 65170), (490, 52136), (532, 48020), (560, 45619), (665, 38416), (686, 37240), (760, 33614), (784, 32585), (931, 27440), (980, 26068), (1064, 24010), (1330, 19208), (1372, 18620), (1520, 16807), (1715, 14896), (1862, 13720), (1960, 13034), (2128, 12005), (2401, 10640), (2660, 9604), (2744, 9310), (3430, 7448), (3724, 6860), (3920, 6517), (4655, 5488), (4802, 5320)]