25923920

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{331}}^1$

素因数の和:444

約数の個数: 80

約数和(自身を含む): 66692160

約数和(自身を除く): 40768240

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 89, 110, 176, 178, 220, 331, 356, 440, 445, 662, 712, 880, 890, 979, 1324, 1424, 1655, 1780, 1958, 2648, 3310, 3560, 3641, 3916, 4895, 5296, 6620, 7120, 7282, 7832, 9790, 13240, 14564, 15664, 18205, 19580, 26480, 29128, 29459, 36410, 39160, 58256, 58918, 72820, 78320, 117836, 145640, 147295, 235672, 291280, 294590, 324049, 471344, 589180, 648098, 1178360, 1296196, 1620245, 2356720, 2592392, 3240490, 5184784, 6480980, 12961960, 25923920]

約数ペア:

[(1, 25923920), (2, 12961960), (4, 6480980), (5, 5184784), (8, 3240490), (10, 2592392), (11, 2356720), (16, 1620245), (20, 1296196), (22, 1178360), (40, 648098), (44, 589180), (55, 471344), (80, 324049), (88, 294590), (89, 291280), (110, 235672), (176, 147295), (178, 145640), (220, 117836), (331, 78320), (356, 72820), (440, 58918), (445, 58256), (662, 39160), (712, 36410), (880, 29459), (890, 29128), (979, 26480), (1324, 19580), (1424, 18205), (1655, 15664), (1780, 14564), (1958, 13240), (2648, 9790), (3310, 7832), (3560, 7282), (3641, 7120), (3916, 6620), (4895, 5296)]