278505990

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{439}}^1$

素因数の和:531

約数の個数: 192

約数和(自身を含む): 889574400

約数和(自身を除く): 611068410

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 30, 35, 38, 42, 45, 53, 57, 63, 70, 90, 95, 105, 106, 114, 126, 133, 159, 171, 190, 210, 265, 266, 285, 315, 318, 342, 371, 399, 439, 477, 530, 570, 630, 665, 742, 795, 798, 855, 878, 954, 1007, 1113, 1197, 1317, 1330, 1590, 1710, 1855, 1995, 2014, 2195, 2226, 2385, 2394, 2634, 3021, 3073, 3339, 3710, 3951, 3990, 4390, 4770, 5035, 5565, 5985, 6042, 6146, 6585, 6678, 7049, 7902, 8341, 9063, 9219, 10070, 11130, 11970, 13170, 14098, 15105, 15365, 16682, 16695, 18126, 18438, 19755, 21147, 23267, 25023, 27657, 30210, 30730, 33390, 35245, 39510, 41705, 42294, 45315, 46095, 46534, 50046, 55314, 58387, 63441, 69801, 70490, 75069, 83410, 90630, 92190, 105735, 116335, 116774, 125115, 126882, 138285, 139602, 150138, 162869, 175161, 209403, 211470, 232670, 250230, 276570, 291935, 317205, 325738, 349005, 350322, 375345, 418806, 442073, 488607, 525483, 583870, 634410, 698010, 750690, 814345, 875805, 884146, 977214, 1047015, 1050966, 1326219, 1465821, 1628690, 1751610, 2094030, 2210365, 2443035, 2627415, 2652438, 2931642, 3094511, 3978657, 4420730, 4886070, 5254830, 6189022, 6631095, 7329105, 7957314, 9283533, 13262190, 14658210, 15472555, 18567066, 19893285, 27850599, 30945110, 39786570, 46417665, 55701198, 92835330, 139252995, 278505990]

約数ペア:

[(1, 278505990), (2, 139252995), (3, 92835330), (5, 55701198), (6, 46417665), (7, 39786570), (9, 30945110), (10, 27850599), (14, 19893285), (15, 18567066), (18, 15472555), (19, 14658210), (21, 13262190), (30, 9283533), (35, 7957314), (38, 7329105), (42, 6631095), (45, 6189022), (53, 5254830), (57, 4886070), (63, 4420730), (70, 3978657), (90, 3094511), (95, 2931642), (105, 2652438), (106, 2627415), (114, 2443035), (126, 2210365), (133, 2094030), (159, 1751610), (171, 1628690), (190, 1465821), (210, 1326219), (265, 1050966), (266, 1047015), (285, 977214), (315, 884146), (318, 875805), (342, 814345), (371, 750690), (399, 698010), (439, 634410), (477, 583870), (530, 525483), (570, 488607), (630, 442073), (665, 418806), (742, 375345), (795, 350322), (798, 349005), (855, 325738), (878, 317205), (954, 291935), (1007, 276570), (1113, 250230), (1197, 232670), (1317, 211470), (1330, 209403), (1590, 175161), (1710, 162869), (1855, 150138), (1995, 139602), (2014, 138285), (2195, 126882), (2226, 125115), (2385, 116774), (2394, 116335), (2634, 105735), (3021, 92190), (3073, 90630), (3339, 83410), (3710, 75069), (3951, 70490), (3990, 69801), (4390, 63441), (4770, 58387), (5035, 55314), (5565, 50046), (5985, 46534), (6042, 46095), (6146, 45315), (6585, 42294), (6678, 41705), (7049, 39510), (7902, 35245), (8341, 33390), (9063, 30730), (9219, 30210), (10070, 27657), (11130, 25023), (11970, 23267), (13170, 21147), (14098, 19755), (15105, 18438), (15365, 18126), (16682, 16695)]