320672280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{20399}}^1$

素因数の和:20544

約数の個数: 64

約数和(自身を含む): 969408000

約数和(自身を除く): 648735720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 131, 262, 393, 524, 655, 786, 1048, 1310, 1572, 1965, 2620, 3144, 3930, 5240, 7860, 15720, 20399, 40798, 61197, 81596, 101995, 122394, 163192, 203990, 244788, 305985, 407980, 489576, 611970, 815960, 1223940, 2447880, 2672269, 5344538, 8016807, 10689076, 13361345, 16033614, 21378152, 26722690, 32067228, 40084035, 53445380, 64134456, 80168070, 106890760, 160336140, 320672280]

約数ペア:

[(1, 320672280), (2, 160336140), (3, 106890760), (4, 80168070), (5, 64134456), (6, 53445380), (8, 40084035), (10, 32067228), (12, 26722690), (15, 21378152), (20, 16033614), (24, 13361345), (30, 10689076), (40, 8016807), (60, 5344538), (120, 2672269), (131, 2447880), (262, 1223940), (393, 815960), (524, 611970), (655, 489576), (786, 407980), (1048, 305985), (1310, 244788), (1572, 203990), (1965, 163192), (2620, 122394), (3144, 101995), (3930, 81596), (5240, 61197), (7860, 40798), (15720, 20399)]