28378260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{4261}}^1$

素因数の和:4313

約数の個数: 72

約数和(自身を含む): 88427976

約数和(自身を除く): 60049716

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 37, 45, 60, 74, 90, 111, 148, 180, 185, 222, 333, 370, 444, 555, 666, 740, 1110, 1332, 1665, 2220, 3330, 4261, 6660, 8522, 12783, 17044, 21305, 25566, 38349, 42610, 51132, 63915, 76698, 85220, 127830, 153396, 157657, 191745, 255660, 315314, 383490, 472971, 630628, 766980, 788285, 945942, 1418913, 1576570, 1891884, 2364855, 2837826, 3153140, 4729710, 5675652, 7094565, 9459420, 14189130, 28378260]

約数ペア:

[(1, 28378260), (2, 14189130), (3, 9459420), (4, 7094565), (5, 5675652), (6, 4729710), (9, 3153140), (10, 2837826), (12, 2364855), (15, 1891884), (18, 1576570), (20, 1418913), (30, 945942), (36, 788285), (37, 766980), (45, 630628), (60, 472971), (74, 383490), (90, 315314), (111, 255660), (148, 191745), (180, 157657), (185, 153396), (222, 127830), (333, 85220), (370, 76698), (444, 63915), (555, 51132), (666, 42610), (740, 38349), (1110, 25566), (1332, 21305), (1665, 17044), (2220, 12783), (3330, 8522), (4261, 6660)]