278647530

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1861}}^1$

素因数の和:1932

約数の個数: 128

約数和(自身を含む): 823689216

約数和(自身を除く): 545041686

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 23, 30, 31, 35, 42, 46, 62, 69, 70, 93, 105, 115, 138, 155, 161, 186, 210, 217, 230, 310, 322, 345, 434, 465, 483, 651, 690, 713, 805, 930, 966, 1085, 1302, 1426, 1610, 1861, 2139, 2170, 2415, 3255, 3565, 3722, 4278, 4830, 4991, 5583, 6510, 7130, 9305, 9982, 10695, 11166, 13027, 14973, 18610, 21390, 24955, 26054, 27915, 29946, 39081, 42803, 49910, 55830, 57691, 65135, 74865, 78162, 85606, 115382, 128409, 130270, 149730, 173073, 195405, 214015, 256818, 288455, 299621, 346146, 390810, 403837, 428030, 576910, 599242, 642045, 807674, 865365, 898863, 1211511, 1284090, 1326893, 1498105, 1730730, 1797726, 2019185, 2423022, 2653786, 2996210, 3980679, 4038370, 4494315, 6057555, 6634465, 7961358, 8988630, 9288251, 12115110, 13268930, 18576502, 19903395, 27864753, 39806790, 46441255, 55729506, 92882510, 139323765, 278647530]

約数ペア:

[(1, 278647530), (2, 139323765), (3, 92882510), (5, 55729506), (6, 46441255), (7, 39806790), (10, 27864753), (14, 19903395), (15, 18576502), (21, 13268930), (23, 12115110), (30, 9288251), (31, 8988630), (35, 7961358), (42, 6634465), (46, 6057555), (62, 4494315), (69, 4038370), (70, 3980679), (93, 2996210), (105, 2653786), (115, 2423022), (138, 2019185), (155, 1797726), (161, 1730730), (186, 1498105), (210, 1326893), (217, 1284090), (230, 1211511), (310, 898863), (322, 865365), (345, 807674), (434, 642045), (465, 599242), (483, 576910), (651, 428030), (690, 403837), (713, 390810), (805, 346146), (930, 299621), (966, 288455), (1085, 256818), (1302, 214015), (1426, 195405), (1610, 173073), (1861, 149730), (2139, 130270), (2170, 128409), (2415, 115382), (3255, 85606), (3565, 78162), (3722, 74865), (4278, 65135), (4830, 57691), (4991, 55830), (5583, 49910), (6510, 42803), (7130, 39081), (9305, 29946), (9982, 27915), (10695, 26054), (11166, 24955), (13027, 21390), (14973, 18610)]