1977750795

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{263}}^1\times {\mathrm{307}}^1$

素因数の和:672

約数の個数: 64

約数和(自身を含む): 3372171264

約数和(自身を除く): 1394420469

約数列:

[1, 3, 5, 15, 23, 69, 71, 115, 213, 263, 307, 345, 355, 789, 921, 1065, 1315, 1535, 1633, 3945, 4605, 4899, 6049, 7061, 8165, 18147, 18673, 21183, 21797, 24495, 30245, 35305, 56019, 65391, 80741, 90735, 93365, 105915, 108985, 242223, 280095, 326955, 403705, 429479, 501331, 1211115, 1288437, 1503993, 1857043, 2147395, 2506655, 5571129, 5732611, 6442185, 7519965, 9285215, 17197833, 27855645, 28663055, 85989165, 131850053, 395550159, 659250265, 1977750795]

約数ペア:

[(1, 1977750795), (3, 659250265), (5, 395550159), (15, 131850053), (23, 85989165), (69, 28663055), (71, 27855645), (115, 17197833), (213, 9285215), (263, 7519965), (307, 6442185), (345, 5732611), (355, 5571129), (789, 2506655), (921, 2147395), (1065, 1857043), (1315, 1503993), (1535, 1288437), (1633, 1211115), (3945, 501331), (4605, 429479), (4899, 403705), (6049, 326955), (7061, 280095), (8165, 242223), (18147, 108985), (18673, 105915), (21183, 93365), (21797, 90735), (24495, 80741), (30245, 65391), (35305, 56019)]