68989880

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:165

約数の個数: 128

約数和(自身を含む): 174182400

約数和(自身を除く): 105192520

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 31, 40, 41, 46, 59, 62, 82, 92, 115, 118, 124, 155, 164, 184, 205, 230, 236, 248, 295, 310, 328, 410, 460, 472, 590, 620, 713, 820, 920, 943, 1180, 1240, 1271, 1357, 1426, 1640, 1829, 1886, 2360, 2419, 2542, 2714, 2852, 3565, 3658, 3772, 4715, 4838, 5084, 5428, 5704, 6355, 6785, 7130, 7316, 7544, 9145, 9430, 9676, 10168, 10856, 12095, 12710, 13570, 14260, 14632, 18290, 18860, 19352, 24190, 25420, 27140, 28520, 29233, 36580, 37720, 42067, 48380, 50840, 54280, 55637, 58466, 73160, 74989, 84134, 96760, 111274, 116932, 146165, 149978, 168268, 210335, 222548, 233864, 278185, 292330, 299956, 336536, 374945, 420670, 445096, 556370, 584660, 599912, 749890, 841340, 1112740, 1169320, 1499780, 1682680, 1724747, 2225480, 2999560, 3449494, 6898988, 8623735, 13797976, 17247470, 34494940, 68989880]

約数ペア:

[(1, 68989880), (2, 34494940), (4, 17247470), (5, 13797976), (8, 8623735), (10, 6898988), (20, 3449494), (23, 2999560), (31, 2225480), (40, 1724747), (41, 1682680), (46, 1499780), (59, 1169320), (62, 1112740), (82, 841340), (92, 749890), (115, 599912), (118, 584660), (124, 556370), (155, 445096), (164, 420670), (184, 374945), (205, 336536), (230, 299956), (236, 292330), (248, 278185), (295, 233864), (310, 222548), (328, 210335), (410, 168268), (460, 149978), (472, 146165), (590, 116932), (620, 111274), (713, 96760), (820, 84134), (920, 74989), (943, 73160), (1180, 58466), (1240, 55637), (1271, 54280), (1357, 50840), (1426, 48380), (1640, 42067), (1829, 37720), (1886, 36580), (2360, 29233), (2419, 28520), (2542, 27140), (2714, 25420), (2852, 24190), (3565, 19352), (3658, 18860), (3772, 18290), (4715, 14632), (4838, 14260), (5084, 13570), (5428, 12710), (5704, 12095), (6355, 10856), (6785, 10168), (7130, 9676), (7316, 9430), (7544, 9145)]