144428440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{277747}}^1$

素因数の和:277771

約数の個数: 32

約数和(自身を含む): 349962480

約数和(自身を除く): 205534040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 277747, 555494, 1110988, 1388735, 2221976, 2777470, 3610711, 5554940, 7221422, 11109880, 14442844, 18053555, 28885688, 36107110, 72214220, 144428440]

約数ペア:

[(1, 144428440), (2, 72214220), (4, 36107110), (5, 28885688), (8, 18053555), (10, 14442844), (13, 11109880), (20, 7221422), (26, 5554940), (40, 3610711), (52, 2777470), (65, 2221976), (104, 1388735), (130, 1110988), (260, 555494), (520, 277747)]