20808857500

素因数分解:

$2^2\times 5^4\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{1987}}^1$

素因数の和:2141

約数の個数: 120

約数和(自身を含む): 46951470720

約数和(自身を除く): 26142613220

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 59, 71, 100, 118, 125, 142, 236, 250, 284, 295, 355, 500, 590, 625, 710, 1180, 1250, 1420, 1475, 1775, 1987, 2500, 2950, 3550, 3974, 4189, 5900, 7100, 7375, 7948, 8378, 8875, 9935, 14750, 16756, 17750, 19870, 20945, 29500, 35500, 36875, 39740, 41890, 44375, 49675, 73750, 83780, 88750, 99350, 104725, 117233, 141077, 147500, 177500, 198700, 209450, 234466, 248375, 282154, 418900, 468932, 496750, 523625, 564308, 586165, 705385, 993500, 1047250, 1172330, 1241875, 1410770, 2094500, 2344660, 2483750, 2618125, 2821540, 2930825, 3526925, 4967500, 5236250, 5861650, 7053850, 8323543, 10472500, 11723300, 14107700, 14654125, 16647086, 17634625, 29308250, 33294172, 35269250, 41617715, 58616500, 70538500, 73270625, 83235430, 88173125, 146541250, 166470860, 176346250, 208088575, 293082500, 352692500, 416177150, 832354300, 1040442875, 2080885750, 4161771500, 5202214375, 10404428750, 20808857500]

約数ペア:

[(1, 20808857500), (2, 10404428750), (4, 5202214375), (5, 4161771500), (10, 2080885750), (20, 1040442875), (25, 832354300), (50, 416177150), (59, 352692500), (71, 293082500), (100, 208088575), (118, 176346250), (125, 166470860), (142, 146541250), (236, 88173125), (250, 83235430), (284, 73270625), (295, 70538500), (355, 58616500), (500, 41617715), (590, 35269250), (625, 33294172), (710, 29308250), (1180, 17634625), (1250, 16647086), (1420, 14654125), (1475, 14107700), (1775, 11723300), (1987, 10472500), (2500, 8323543), (2950, 7053850), (3550, 5861650), (3974, 5236250), (4189, 4967500), (5900, 3526925), (7100, 2930825), (7375, 2821540), (7948, 2618125), (8378, 2483750), (8875, 2344660), (9935, 2094500), (14750, 1410770), (16756, 1241875), (17750, 1172330), (19870, 1047250), (20945, 993500), (29500, 705385), (35500, 586165), (36875, 564308), (39740, 523625), (41890, 496750), (44375, 468932), (49675, 418900), (73750, 282154), (83780, 248375), (88750, 234466), (99350, 209450), (104725, 198700), (117233, 177500), (141077, 147500)]