20944749060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{311}}^1\times {\mathrm{2731}}^1$

素因数の和:3194

約数の個数: 144

約数和(自身を含む): 64225429632

約数和(自身を除く): 43280680572

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 137, 180, 274, 311, 411, 548, 622, 685, 822, 933, 1233, 1244, 1370, 1555, 1644, 1866, 2055, 2466, 2731, 2740, 2799, 3110, 3732, 4110, 4665, 4932, 5462, 5598, 6165, 6220, 8193, 8220, 9330, 10924, 11196, 12330, 13655, 13995, 16386, 18660, 24579, 24660, 27310, 27990, 32772, 40965, 42607, 49158, 54620, 55980, 81930, 85214, 98316, 122895, 127821, 163860, 170428, 213035, 245790, 255642, 374147, 383463, 426070, 491580, 511284, 639105, 748294, 766926, 849341, 852140, 1122441, 1278210, 1496588, 1533852, 1698682, 1870735, 1917315, 2244882, 2548023, 2556420, 3367323, 3397364, 3741470, 3834630, 4246705, 4489764, 5096046, 5612205, 6734646, 7482940, 7644069, 7669260, 8493410, 10192092, 11224410, 12740115, 13469292, 15288138, 16836615, 16986820, 22448820, 25480230, 30576276, 33673230, 38220345, 50960460, 67346460, 76440690, 116359717, 152881380, 232719434, 349079151, 465438868, 581798585, 698158302, 1047237453, 1163597170, 1396316604, 1745395755, 2094474906, 2327194340, 3490791510, 4188949812, 5236187265, 6981583020, 10472374530, 20944749060]

約数ペア:

[(1, 20944749060), (2, 10472374530), (3, 6981583020), (4, 5236187265), (5, 4188949812), (6, 3490791510), (9, 2327194340), (10, 2094474906), (12, 1745395755), (15, 1396316604), (18, 1163597170), (20, 1047237453), (30, 698158302), (36, 581798585), (45, 465438868), (60, 349079151), (90, 232719434), (137, 152881380), (180, 116359717), (274, 76440690), (311, 67346460), (411, 50960460), (548, 38220345), (622, 33673230), (685, 30576276), (822, 25480230), (933, 22448820), (1233, 16986820), (1244, 16836615), (1370, 15288138), (1555, 13469292), (1644, 12740115), (1866, 11224410), (2055, 10192092), (2466, 8493410), (2731, 7669260), (2740, 7644069), (2799, 7482940), (3110, 6734646), (3732, 5612205), (4110, 5096046), (4665, 4489764), (4932, 4246705), (5462, 3834630), (5598, 3741470), (6165, 3397364), (6220, 3367323), (8193, 2556420), (8220, 2548023), (9330, 2244882), (10924, 1917315), (11196, 1870735), (12330, 1698682), (13655, 1533852), (13995, 1496588), (16386, 1278210), (18660, 1122441), (24579, 852140), (24660, 849341), (27310, 766926), (27990, 748294), (32772, 639105), (40965, 511284), (42607, 491580), (49158, 426070), (54620, 383463), (55980, 374147), (81930, 255642), (85214, 245790), (98316, 213035), (122895, 170428), (127821, 163860)]