278319090

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1987}}^1$

素因数の和:2056

約数の個数: 128

約数和(自身を含む): 824463360

約数和(自身を除く): 546144270

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 23, 29, 30, 35, 42, 46, 58, 69, 70, 87, 105, 115, 138, 145, 161, 174, 203, 210, 230, 290, 322, 345, 406, 435, 483, 609, 667, 690, 805, 870, 966, 1015, 1218, 1334, 1610, 1987, 2001, 2030, 2415, 3045, 3335, 3974, 4002, 4669, 4830, 5961, 6090, 6670, 9338, 9935, 10005, 11922, 13909, 14007, 19870, 20010, 23345, 27818, 28014, 29805, 41727, 45701, 46690, 57623, 59610, 69545, 70035, 83454, 91402, 115246, 137103, 139090, 140070, 172869, 208635, 228505, 274206, 288115, 319907, 345738, 403361, 417270, 457010, 576230, 639814, 685515, 806722, 864345, 959721, 1210083, 1325329, 1371030, 1599535, 1728690, 1919442, 2016805, 2420166, 2650658, 3199070, 3975987, 4033610, 4798605, 6050415, 6626645, 7951974, 9277303, 9597210, 12100830, 13253290, 18554606, 19879935, 27831909, 39759870, 46386515, 55663818, 92773030, 139159545, 278319090]

約数ペア:

[(1, 278319090), (2, 139159545), (3, 92773030), (5, 55663818), (6, 46386515), (7, 39759870), (10, 27831909), (14, 19879935), (15, 18554606), (21, 13253290), (23, 12100830), (29, 9597210), (30, 9277303), (35, 7951974), (42, 6626645), (46, 6050415), (58, 4798605), (69, 4033610), (70, 3975987), (87, 3199070), (105, 2650658), (115, 2420166), (138, 2016805), (145, 1919442), (161, 1728690), (174, 1599535), (203, 1371030), (210, 1325329), (230, 1210083), (290, 959721), (322, 864345), (345, 806722), (406, 685515), (435, 639814), (483, 576230), (609, 457010), (667, 417270), (690, 403361), (805, 345738), (870, 319907), (966, 288115), (1015, 274206), (1218, 228505), (1334, 208635), (1610, 172869), (1987, 140070), (2001, 139090), (2030, 137103), (2415, 115246), (3045, 91402), (3335, 83454), (3974, 70035), (4002, 69545), (4669, 59610), (4830, 57623), (5961, 46690), (6090, 45701), (6670, 41727), (9338, 29805), (9935, 28014), (10005, 27818), (11922, 23345), (13909, 20010), (14007, 19870)]