20189769460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1\times {\mathrm{7573}}^1$

素因数の和:7865

約数の個数: 96

約数和(自身を含む): 49166772480

約数和(自身を除く): 28977003020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 137, 139, 140, 274, 278, 548, 556, 685, 695, 959, 973, 1370, 1390, 1918, 1946, 2740, 2780, 3836, 3892, 4795, 4865, 7573, 9590, 9730, 15146, 19043, 19180, 19460, 30292, 37865, 38086, 53011, 75730, 76172, 95215, 106022, 133301, 151460, 190430, 212044, 265055, 266602, 380860, 530110, 533204, 666505, 1037501, 1052647, 1060220, 1333010, 2075002, 2105294, 2666020, 4150004, 4210588, 5187505, 5263235, 7262507, 7368529, 10375010, 10526470, 14525014, 14737058, 20750020, 21052940, 29050028, 29474116, 36312535, 36842645, 72625070, 73685290, 144212639, 145250140, 147370580, 288425278, 576850556, 721063195, 1009488473, 1442126390, 2018976946, 2884252780, 4037953892, 5047442365, 10094884730, 20189769460]

約数ペア:

[(1, 20189769460), (2, 10094884730), (4, 5047442365), (5, 4037953892), (7, 2884252780), (10, 2018976946), (14, 1442126390), (20, 1009488473), (28, 721063195), (35, 576850556), (70, 288425278), (137, 147370580), (139, 145250140), (140, 144212639), (274, 73685290), (278, 72625070), (548, 36842645), (556, 36312535), (685, 29474116), (695, 29050028), (959, 21052940), (973, 20750020), (1370, 14737058), (1390, 14525014), (1918, 10526470), (1946, 10375010), (2740, 7368529), (2780, 7262507), (3836, 5263235), (3892, 5187505), (4795, 4210588), (4865, 4150004), (7573, 2666020), (9590, 2105294), (9730, 2075002), (15146, 1333010), (19043, 1060220), (19180, 1052647), (19460, 1037501), (30292, 666505), (37865, 533204), (38086, 530110), (53011, 380860), (75730, 266602), (76172, 265055), (95215, 212044), (106022, 190430), (133301, 151460)]