28439880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{33857}}^1$

素因数の和:33878

約数の個数: 64

約数和(自身を含む): 97511040

約数和(自身を除く): 69071160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 33857, 67714, 101571, 135428, 169285, 203142, 236999, 270856, 338570, 406284, 473998, 507855, 677140, 710997, 812568, 947996, 1015710, 1184995, 1354280, 1421994, 1895992, 2031420, 2369990, 2843988, 3554985, 4062840, 4739980, 5687976, 7109970, 9479960, 14219940, 28439880]

約数ペア:

[(1, 28439880), (2, 14219940), (3, 9479960), (4, 7109970), (5, 5687976), (6, 4739980), (7, 4062840), (8, 3554985), (10, 2843988), (12, 2369990), (14, 2031420), (15, 1895992), (20, 1421994), (21, 1354280), (24, 1184995), (28, 1015710), (30, 947996), (35, 812568), (40, 710997), (42, 677140), (56, 507855), (60, 473998), (70, 406284), (84, 338570), (105, 270856), (120, 236999), (140, 203142), (168, 169285), (210, 135428), (280, 101571), (420, 67714), (840, 33857)]