404877980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{263}}^1$

素因数の和:507

約数の個数: 96

約数和(自身を含む): 953745408

約数和(自身を除く): 548867428

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 191, 260, 263, 310, 382, 403, 526, 620, 764, 806, 955, 1052, 1315, 1612, 1910, 2015, 2483, 2630, 3419, 3820, 4030, 4966, 5260, 5921, 6838, 8060, 8153, 9932, 11842, 12415, 13676, 16306, 17095, 23684, 24830, 29605, 32612, 34190, 40765, 49660, 50233, 59210, 68380, 76973, 81530, 100466, 105989, 118420, 153946, 163060, 200932, 211978, 251165, 307892, 384865, 423956, 502330, 529945, 653029, 769730, 1004660, 1059890, 1306058, 1539460, 1557223, 2119780, 2612116, 3114446, 3265145, 6228892, 6530290, 7786115, 13060580, 15572230, 20243899, 31144460, 40487798, 80975596, 101219495, 202438990, 404877980]

約数ペア:

[(1, 404877980), (2, 202438990), (4, 101219495), (5, 80975596), (10, 40487798), (13, 31144460), (20, 20243899), (26, 15572230), (31, 13060580), (52, 7786115), (62, 6530290), (65, 6228892), (124, 3265145), (130, 3114446), (155, 2612116), (191, 2119780), (260, 1557223), (263, 1539460), (310, 1306058), (382, 1059890), (403, 1004660), (526, 769730), (620, 653029), (764, 529945), (806, 502330), (955, 423956), (1052, 384865), (1315, 307892), (1612, 251165), (1910, 211978), (2015, 200932), (2483, 163060), (2630, 153946), (3419, 118420), (3820, 105989), (4030, 100466), (4966, 81530), (5260, 76973), (5921, 68380), (6838, 59210), (8060, 50233), (8153, 49660), (9932, 40765), (11842, 34190), (12415, 32612), (13676, 29605), (16306, 24830), (17095, 23684)]