64717840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{293}}^1$

素因数の和:568

約数の個数: 80

約数和(自身を含む): 165364416

約数和(自身を除く): 100646576

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 251, 293, 440, 502, 586, 880, 1004, 1172, 1255, 1465, 2008, 2344, 2510, 2761, 2930, 3223, 4016, 4688, 5020, 5522, 5860, 6446, 10040, 11044, 11720, 12892, 13805, 16115, 20080, 22088, 23440, 25784, 27610, 32230, 44176, 51568, 55220, 64460, 73543, 110440, 128920, 147086, 220880, 257840, 294172, 367715, 588344, 735430, 808973, 1176688, 1470860, 1617946, 2941720, 3235892, 4044865, 5883440, 6471784, 8089730, 12943568, 16179460, 32358920, 64717840]

約数ペア:

[(1, 64717840), (2, 32358920), (4, 16179460), (5, 12943568), (8, 8089730), (10, 6471784), (11, 5883440), (16, 4044865), (20, 3235892), (22, 2941720), (40, 1617946), (44, 1470860), (55, 1176688), (80, 808973), (88, 735430), (110, 588344), (176, 367715), (220, 294172), (251, 257840), (293, 220880), (440, 147086), (502, 128920), (586, 110440), (880, 73543), (1004, 64460), (1172, 55220), (1255, 51568), (1465, 44176), (2008, 32230), (2344, 27610), (2510, 25784), (2761, 23440), (2930, 22088), (3223, 20080), (4016, 16115), (4688, 13805), (5020, 12892), (5522, 11720), (5860, 11044), (6446, 10040)]