12654740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{349}}^1$

素因数の和:409

約数の個数: 72

約数和(自身を含む): 31840200

約数和(自身を除く): 19185460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 49, 70, 74, 98, 140, 148, 185, 196, 245, 259, 349, 370, 490, 518, 698, 740, 980, 1036, 1295, 1396, 1745, 1813, 2443, 2590, 3490, 3626, 4886, 5180, 6980, 7252, 9065, 9772, 12215, 12913, 17101, 18130, 24430, 25826, 34202, 36260, 48860, 51652, 64565, 68404, 85505, 90391, 129130, 171010, 180782, 258260, 342020, 361564, 451955, 632737, 903910, 1265474, 1807820, 2530948, 3163685, 6327370, 12654740]

約数ペア:

[(1, 12654740), (2, 6327370), (4, 3163685), (5, 2530948), (7, 1807820), (10, 1265474), (14, 903910), (20, 632737), (28, 451955), (35, 361564), (37, 342020), (49, 258260), (70, 180782), (74, 171010), (98, 129130), (140, 90391), (148, 85505), (185, 68404), (196, 64565), (245, 51652), (259, 48860), (349, 36260), (370, 34202), (490, 25826), (518, 24430), (698, 18130), (740, 17101), (980, 12913), (1036, 12215), (1295, 9772), (1396, 9065), (1745, 7252), (1813, 6980), (2443, 5180), (2590, 4886), (3490, 3626)]