8006440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{173}}^1$

素因数の和:286

約数の個数: 64

約数和(自身を含む): 19731600

約数和(自身を除く): 11725160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 89, 104, 130, 173, 178, 260, 346, 356, 445, 520, 692, 712, 865, 890, 1157, 1384, 1730, 1780, 2249, 2314, 3460, 3560, 4498, 4628, 5785, 6920, 8996, 9256, 11245, 11570, 15397, 17992, 22490, 23140, 30794, 44980, 46280, 61588, 76985, 89960, 123176, 153970, 200161, 307940, 400322, 615880, 800644, 1000805, 1601288, 2001610, 4003220, 8006440]

約数ペア:

[(1, 8006440), (2, 4003220), (4, 2001610), (5, 1601288), (8, 1000805), (10, 800644), (13, 615880), (20, 400322), (26, 307940), (40, 200161), (52, 153970), (65, 123176), (89, 89960), (104, 76985), (130, 61588), (173, 46280), (178, 44980), (260, 30794), (346, 23140), (356, 22490), (445, 17992), (520, 15397), (692, 11570), (712, 11245), (865, 9256), (890, 8996), (1157, 6920), (1384, 5785), (1730, 4628), (1780, 4498), (2249, 3560), (2314, 3460)]