145754420

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{21247}}^1$

素因数の和:21277

約数の個数: 48

約数和(自身を含む): 356966400

約数和(自身を除く): 211211980

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 21247, 42494, 84988, 106235, 148729, 212470, 297458, 424940, 594916, 743645, 1041103, 1487290, 2082206, 2974580, 4164412, 5205515, 7287721, 10411030, 14575442, 20822060, 29150884, 36438605, 72877210, 145754420]

約数ペア:

[(1, 145754420), (2, 72877210), (4, 36438605), (5, 29150884), (7, 20822060), (10, 14575442), (14, 10411030), (20, 7287721), (28, 5205515), (35, 4164412), (49, 2974580), (70, 2082206), (98, 1487290), (140, 1041103), (196, 743645), (245, 594916), (343, 424940), (490, 297458), (686, 212470), (980, 148729), (1372, 106235), (1715, 84988), (3430, 42494), (6860, 21247)]