1620490480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{397}}^1$

素因数の和:651

約数の個数: 160

約数和(自身を含む): 4455893376

約数和(自身を除く): 2835402896

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 37, 40, 56, 70, 74, 80, 112, 140, 148, 185, 197, 259, 280, 296, 370, 394, 397, 518, 560, 592, 740, 788, 794, 985, 1036, 1295, 1379, 1480, 1576, 1588, 1970, 1985, 2072, 2590, 2758, 2779, 2960, 3152, 3176, 3940, 3970, 4144, 5180, 5516, 5558, 6352, 6895, 7289, 7880, 7940, 10360, 11032, 11116, 13790, 13895, 14578, 14689, 15760, 15880, 20720, 22064, 22232, 27580, 27790, 29156, 29378, 31760, 36445, 44464, 51023, 55160, 55580, 58312, 58756, 72890, 73445, 78209, 102046, 102823, 110320, 111160, 116624, 117512, 145780, 146890, 156418, 204092, 205646, 222320, 235024, 255115, 291560, 293780, 312836, 391045, 408184, 411292, 510230, 514115, 547463, 583120, 587560, 625672, 782090, 816368, 822584, 1020460, 1028230, 1094926, 1175120, 1251344, 1564180, 1645168, 2040920, 2056460, 2189852, 2737315, 2893733, 3128360, 4081840, 4112920, 4379704, 5474630, 5787466, 6256720, 8225840, 8759408, 10949260, 11574932, 14468665, 20256131, 21898520, 23149864, 28937330, 40512262, 43797040, 46299728, 57874660, 81024524, 101280655, 115749320, 162049048, 202561310, 231498640, 324098096, 405122620, 810245240, 1620490480]

約数ペア:

[(1, 1620490480), (2, 810245240), (4, 405122620), (5, 324098096), (7, 231498640), (8, 202561310), (10, 162049048), (14, 115749320), (16, 101280655), (20, 81024524), (28, 57874660), (35, 46299728), (37, 43797040), (40, 40512262), (56, 28937330), (70, 23149864), (74, 21898520), (80, 20256131), (112, 14468665), (140, 11574932), (148, 10949260), (185, 8759408), (197, 8225840), (259, 6256720), (280, 5787466), (296, 5474630), (370, 4379704), (394, 4112920), (397, 4081840), (518, 3128360), (560, 2893733), (592, 2737315), (740, 2189852), (788, 2056460), (794, 2040920), (985, 1645168), (1036, 1564180), (1295, 1251344), (1379, 1175120), (1480, 1094926), (1576, 1028230), (1588, 1020460), (1970, 822584), (1985, 816368), (2072, 782090), (2590, 625672), (2758, 587560), (2779, 583120), (2960, 547463), (3152, 514115), (3176, 510230), (3940, 411292), (3970, 408184), (4144, 391045), (5180, 312836), (5516, 293780), (5558, 291560), (6352, 255115), (6895, 235024), (7289, 222320), (7880, 205646), (7940, 204092), (10360, 156418), (11032, 146890), (11116, 145780), (13790, 117512), (13895, 116624), (14578, 111160), (14689, 110320), (15760, 102823), (15880, 102046), (20720, 78209), (22064, 73445), (22232, 72890), (27580, 58756), (27790, 58312), (29156, 55580), (29378, 55160), (31760, 51023), (36445, 44464)]