647481720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{503}}^1\times {\mathrm{631}}^1$

素因数の和:1165

約数の個数: 128

約数和(自身を含む): 2064061440

約数和(自身を除く): 1416579720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 503, 510, 631, 680, 1006, 1020, 1262, 1509, 1893, 2012, 2040, 2515, 2524, 3018, 3155, 3786, 4024, 5030, 5048, 6036, 6310, 7545, 7572, 8551, 9465, 10060, 10727, 12072, 12620, 15090, 15144, 17102, 18930, 20120, 21454, 25240, 25653, 30180, 32181, 34204, 37860, 42755, 42908, 51306, 53635, 60360, 64362, 68408, 75720, 85510, 85816, 102612, 107270, 128265, 128724, 160905, 171020, 205224, 214540, 256530, 257448, 317393, 321810, 342040, 429080, 513060, 634786, 643620, 952179, 1026120, 1269572, 1287240, 1586965, 1904358, 2539144, 3173930, 3808716, 4760895, 5395681, 6347860, 7617432, 9521790, 10791362, 12695720, 16187043, 19043580, 21582724, 26978405, 32374086, 38087160, 43165448, 53956810, 64748172, 80935215, 107913620, 129496344, 161870430, 215827240, 323740860, 647481720]

約数ペア:

[(1, 647481720), (2, 323740860), (3, 215827240), (4, 161870430), (5, 129496344), (6, 107913620), (8, 80935215), (10, 64748172), (12, 53956810), (15, 43165448), (17, 38087160), (20, 32374086), (24, 26978405), (30, 21582724), (34, 19043580), (40, 16187043), (51, 12695720), (60, 10791362), (68, 9521790), (85, 7617432), (102, 6347860), (120, 5395681), (136, 4760895), (170, 3808716), (204, 3173930), (255, 2539144), (340, 1904358), (408, 1586965), (503, 1287240), (510, 1269572), (631, 1026120), (680, 952179), (1006, 643620), (1020, 634786), (1262, 513060), (1509, 429080), (1893, 342040), (2012, 321810), (2040, 317393), (2515, 257448), (2524, 256530), (3018, 214540), (3155, 205224), (3786, 171020), (4024, 160905), (5030, 128724), (5048, 128265), (6036, 107270), (6310, 102612), (7545, 85816), (7572, 85510), (8551, 75720), (9465, 68408), (10060, 64362), (10727, 60360), (12072, 53635), (12620, 51306), (15090, 42908), (15144, 42755), (17102, 37860), (18930, 34204), (20120, 32181), (21454, 30180), (25240, 25653)]