4003220

素因数分解:

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

素因数の和:284

約数の個数: 48

約数和(自身を含む): 9208080

約数和(自身を除く): 5204860

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 89, 130, 173, 178, 260, 346, 356, 445, 692, 865, 890, 1157, 1730, 1780, 2249, 2314, 3460, 4498, 4628, 5785, 8996, 11245, 11570, 15397, 22490, 23140, 30794, 44980, 61588, 76985, 153970, 200161, 307940, 400322, 800644, 1000805, 2001610, 4003220]

約数ペア:

[(1, 4003220), (2, 2001610), (4, 1000805), (5, 800644), (10, 400322), (13, 307940), (20, 200161), (26, 153970), (52, 76985), (65, 61588), (89, 44980), (130, 30794), (173, 23140), (178, 22490), (260, 15397), (346, 11570), (356, 11245), (445, 8996), (692, 5785), (865, 4628), (890, 4498), (1157, 3460), (1730, 2314), (1780, 2249)]