280804960

素因数分解:

$2^5\times 5^1\times {\mathrm{61}}^1\times {\mathrm{28771}}^1$

素因数の和:28847

約数の個数: 48

約数和(自身を含む): 674300592

約数和(自身を除く): 393495632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 80, 122, 160, 244, 305, 488, 610, 976, 1220, 1952, 2440, 4880, 9760, 28771, 57542, 115084, 143855, 230168, 287710, 460336, 575420, 920672, 1150840, 1755031, 2301680, 3510062, 4603360, 7020124, 8775155, 14040248, 17550310, 28080496, 35100620, 56160992, 70201240, 140402480, 280804960]

約数ペア:

[(1, 280804960), (2, 140402480), (4, 70201240), (5, 56160992), (8, 35100620), (10, 28080496), (16, 17550310), (20, 14040248), (32, 8775155), (40, 7020124), (61, 4603360), (80, 3510062), (122, 2301680), (160, 1755031), (244, 1150840), (305, 920672), (488, 575420), (610, 460336), (976, 287710), (1220, 230168), (1952, 143855), (2440, 115084), (4880, 57542), (9760, 28771)]