39381980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:267

約数の個数: 96

約数和(自身を含む): 96864768

約数和(自身を除く): 57482788

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 43, 44, 46, 55, 86, 92, 110, 115, 172, 181, 215, 220, 230, 253, 362, 430, 460, 473, 506, 724, 860, 905, 946, 989, 1012, 1265, 1810, 1892, 1978, 1991, 2365, 2530, 3620, 3956, 3982, 4163, 4730, 4945, 5060, 7783, 7964, 8326, 9460, 9890, 9955, 10879, 15566, 16652, 19780, 19910, 20815, 21758, 31132, 38915, 39820, 41630, 43516, 45793, 54395, 77830, 83260, 85613, 91586, 108790, 155660, 171226, 179009, 183172, 217580, 228965, 342452, 358018, 428065, 457930, 716036, 856130, 895045, 915860, 1712260, 1790090, 1969099, 3580180, 3938198, 7876396, 9845495, 19690990, 39381980]

約数ペア:

[(1, 39381980), (2, 19690990), (4, 9845495), (5, 7876396), (10, 3938198), (11, 3580180), (20, 1969099), (22, 1790090), (23, 1712260), (43, 915860), (44, 895045), (46, 856130), (55, 716036), (86, 457930), (92, 428065), (110, 358018), (115, 342452), (172, 228965), (181, 217580), (215, 183172), (220, 179009), (230, 171226), (253, 155660), (362, 108790), (430, 91586), (460, 85613), (473, 83260), (506, 77830), (724, 54395), (860, 45793), (905, 43516), (946, 41630), (989, 39820), (1012, 38915), (1265, 31132), (1810, 21758), (1892, 20815), (1978, 19910), (1991, 19780), (2365, 16652), (2530, 15566), (3620, 10879), (3956, 9955), (3982, 9890), (4163, 9460), (4730, 8326), (4945, 7964), (5060, 7783)]