20402206812

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{10487}}^1\times {\mathrm{4157}}^1$

素因数の和:14667

約数の個数: 72

約数和(自身を含む): 55557998496

約数和(自身を除く): 35155791684

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 4157, 8314, 10487, 12471, 16628, 20974, 24942, 31461, 37413, 41948, 49884, 54041, 62922, 74826, 94383, 108082, 125844, 136331, 149652, 162123, 188766, 216164, 272662, 324246, 377532, 408993, 486369, 545324, 648492, 817986, 972738, 1226979, 1635972, 1945476, 2453958, 4907916, 43594459, 87188918, 130783377, 174377836, 261566754, 392350131, 523133508, 566727967, 784700262, 1133455934, 1569400524, 1700183901, 2266911868, 3400367802, 5100551703, 6800735604, 10201103406, 20402206812]

約数ペア:

[(1, 20402206812), (2, 10201103406), (3, 6800735604), (4, 5100551703), (6, 3400367802), (9, 2266911868), (12, 1700183901), (13, 1569400524), (18, 1133455934), (26, 784700262), (36, 566727967), (39, 523133508), (52, 392350131), (78, 261566754), (117, 174377836), (156, 130783377), (234, 87188918), (468, 43594459), (4157, 4907916), (8314, 2453958), (10487, 1945476), (12471, 1635972), (16628, 1226979), (20974, 972738), (24942, 817986), (31461, 648492), (37413, 545324), (41948, 486369), (49884, 408993), (54041, 377532), (62922, 324246), (74826, 272662), (94383, 216164), (108082, 188766), (125844, 162123), (136331, 149652)]