20951469840

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{12471113}}^1$

素因数の和:12471136

約数の個数: 80

約数和(自身を含む): 74228070528

約数和(自身を除く): 53276600688

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 12471113, 24942226, 37413339, 49884452, 62355565, 74826678, 87297791, 99768904, 124711130, 149653356, 174595582, 187066695, 199537808, 249422260, 261893373, 299306712, 349191164, 374133390, 436488955, 498844520, 523786746, 598613424, 698382328, 748266780, 872977910, 997689040, 1047573492, 1309466865, 1396764656, 1496533560, 1745955820, 2095146984, 2618933730, 2993067120, 3491911640, 4190293968, 5237867460, 6983823280, 10475734920, 20951469840]

約数ペア:

[(1, 20951469840), (2, 10475734920), (3, 6983823280), (4, 5237867460), (5, 4190293968), (6, 3491911640), (7, 2993067120), (8, 2618933730), (10, 2095146984), (12, 1745955820), (14, 1496533560), (15, 1396764656), (16, 1309466865), (20, 1047573492), (21, 997689040), (24, 872977910), (28, 748266780), (30, 698382328), (35, 598613424), (40, 523786746), (42, 498844520), (48, 436488955), (56, 374133390), (60, 349191164), (70, 299306712), (80, 261893373), (84, 249422260), (105, 199537808), (112, 187066695), (120, 174595582), (140, 149653356), (168, 124711130), (210, 99768904), (240, 87297791), (280, 74826678), (336, 62355565), (420, 49884452), (560, 37413339), (840, 24942226), (1680, 12471113)]