20199651888

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{164321}}^1$

素因数の和:164542

約数の個数: 80

約数和(自身を含む): 56482072416

約数和(自身を除く): 36282420528

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 197, 208, 312, 394, 591, 624, 788, 1182, 1576, 2364, 2561, 3152, 4728, 5122, 7683, 9456, 10244, 15366, 20488, 30732, 40976, 61464, 122928, 164321, 328642, 492963, 657284, 985926, 1314568, 1971852, 2136173, 2629136, 3943704, 4272346, 6408519, 7887408, 8544692, 12817038, 17089384, 25634076, 32371237, 34178768, 51268152, 64742474, 97113711, 102536304, 129484948, 194227422, 258969896, 388454844, 420826081, 517939792, 776909688, 841652162, 1262478243, 1553819376, 1683304324, 2524956486, 3366608648, 5049912972, 6733217296, 10099825944, 20199651888]

約数ペア:

[(1, 20199651888), (2, 10099825944), (3, 6733217296), (4, 5049912972), (6, 3366608648), (8, 2524956486), (12, 1683304324), (13, 1553819376), (16, 1262478243), (24, 841652162), (26, 776909688), (39, 517939792), (48, 420826081), (52, 388454844), (78, 258969896), (104, 194227422), (156, 129484948), (197, 102536304), (208, 97113711), (312, 64742474), (394, 51268152), (591, 34178768), (624, 32371237), (788, 25634076), (1182, 17089384), (1576, 12817038), (2364, 8544692), (2561, 7887408), (3152, 6408519), (4728, 4272346), (5122, 3943704), (7683, 2629136), (9456, 2136173), (10244, 1971852), (15366, 1314568), (20488, 985926), (30732, 657284), (40976, 492963), (61464, 328642), (122928, 164321)]