72808120

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{307}}^1$

素因数の和:354

約数の個数: 144

約数和(自身を含む): 210145320

約数和(自身を除く): 137337200

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 49, 55, 56, 70, 77, 88, 98, 110, 121, 140, 154, 196, 220, 242, 245, 280, 307, 308, 385, 392, 440, 484, 490, 539, 605, 614, 616, 770, 847, 968, 980, 1078, 1210, 1228, 1535, 1540, 1694, 1960, 2149, 2156, 2420, 2456, 2695, 3070, 3080, 3377, 3388, 4235, 4298, 4312, 4840, 5390, 5929, 6140, 6754, 6776, 8470, 8596, 10745, 10780, 11858, 12280, 13508, 15043, 16885, 16940, 17192, 21490, 21560, 23639, 23716, 27016, 29645, 30086, 33770, 33880, 37147, 42980, 47278, 47432, 59290, 60172, 67540, 74294, 75215, 85960, 94556, 118195, 118580, 120344, 135080, 148588, 150430, 165473, 185735, 189112, 236390, 237160, 260029, 297176, 300860, 330946, 371470, 472780, 520058, 601720, 661892, 742940, 827365, 945560, 1040116, 1300145, 1323784, 1485880, 1654730, 1820203, 2080232, 2600290, 3309460, 3640406, 5200580, 6618920, 7280812, 9101015, 10401160, 14561624, 18202030, 36404060, 72808120]

約数ペア:

[(1, 72808120), (2, 36404060), (4, 18202030), (5, 14561624), (7, 10401160), (8, 9101015), (10, 7280812), (11, 6618920), (14, 5200580), (20, 3640406), (22, 3309460), (28, 2600290), (35, 2080232), (40, 1820203), (44, 1654730), (49, 1485880), (55, 1323784), (56, 1300145), (70, 1040116), (77, 945560), (88, 827365), (98, 742940), (110, 661892), (121, 601720), (140, 520058), (154, 472780), (196, 371470), (220, 330946), (242, 300860), (245, 297176), (280, 260029), (307, 237160), (308, 236390), (385, 189112), (392, 185735), (440, 165473), (484, 150430), (490, 148588), (539, 135080), (605, 120344), (614, 118580), (616, 118195), (770, 94556), (847, 85960), (968, 75215), (980, 74294), (1078, 67540), (1210, 60172), (1228, 59290), (1535, 47432), (1540, 47278), (1694, 42980), (1960, 37147), (2149, 33880), (2156, 33770), (2420, 30086), (2456, 29645), (2695, 27016), (3070, 23716), (3080, 23639), (3377, 21560), (3388, 21490), (4235, 17192), (4298, 16940), (4312, 16885), (4840, 15043), (5390, 13508), (5929, 12280), (6140, 11858), (6754, 10780), (6776, 10745), (8470, 8596)]