203161720

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{1571}}^1$

素因数の和:1696

約数の個数: 64

約数和(自身を含む): 473675040

約数和(自身を除く): 270513320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 61, 106, 122, 212, 244, 265, 305, 424, 488, 530, 610, 1060, 1220, 1571, 2120, 2440, 3142, 3233, 6284, 6466, 7855, 12568, 12932, 15710, 16165, 25864, 31420, 32330, 62840, 64660, 83263, 95831, 129320, 166526, 191662, 333052, 383324, 416315, 479155, 666104, 766648, 832630, 958310, 1665260, 1916620, 3330520, 3833240, 5079043, 10158086, 20316172, 25395215, 40632344, 50790430, 101580860, 203161720]

約数ペア:

[(1, 203161720), (2, 101580860), (4, 50790430), (5, 40632344), (8, 25395215), (10, 20316172), (20, 10158086), (40, 5079043), (53, 3833240), (61, 3330520), (106, 1916620), (122, 1665260), (212, 958310), (244, 832630), (265, 766648), (305, 666104), (424, 479155), (488, 416315), (530, 383324), (610, 333052), (1060, 191662), (1220, 166526), (1571, 129320), (2120, 95831), (2440, 83263), (3142, 64660), (3233, 62840), (6284, 32330), (6466, 31420), (7855, 25864), (12568, 16165), (12932, 15710)]