25307480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{509}}^1$

素因数の和:644

約数の個数: 64

約数和(自身を含む): 62791200

約数和(自身を除く): 37483720

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 113, 220, 226, 440, 452, 509, 565, 904, 1018, 1130, 1243, 2036, 2260, 2486, 2545, 4072, 4520, 4972, 5090, 5599, 6215, 9944, 10180, 11198, 12430, 20360, 22396, 24860, 27995, 44792, 49720, 55990, 57517, 111980, 115034, 223960, 230068, 287585, 460136, 575170, 632687, 1150340, 1265374, 2300680, 2530748, 3163435, 5061496, 6326870, 12653740, 25307480]

約数ペア:

[(1, 25307480), (2, 12653740), (4, 6326870), (5, 5061496), (8, 3163435), (10, 2530748), (11, 2300680), (20, 1265374), (22, 1150340), (40, 632687), (44, 575170), (55, 460136), (88, 287585), (110, 230068), (113, 223960), (220, 115034), (226, 111980), (440, 57517), (452, 55990), (509, 49720), (565, 44792), (904, 27995), (1018, 24860), (1130, 22396), (1243, 20360), (2036, 12430), (2260, 11198), (2486, 10180), (2545, 9944), (4072, 6215), (4520, 5599), (4972, 5090)]