213445180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{20023}}^1$

素因数の和:20086

約数の個数: 48

約数和(自身を含む): 494512704

約数和(自身を除く): 281067524

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 205, 260, 410, 533, 820, 1066, 2132, 2665, 5330, 10660, 20023, 40046, 80092, 100115, 200230, 260299, 400460, 520598, 820943, 1041196, 1301495, 1641886, 2602990, 3283772, 4104715, 5205980, 8209430, 10672259, 16418860, 21344518, 42689036, 53361295, 106722590, 213445180]

約数ペア:

[(1, 213445180), (2, 106722590), (4, 53361295), (5, 42689036), (10, 21344518), (13, 16418860), (20, 10672259), (26, 8209430), (41, 5205980), (52, 4104715), (65, 3283772), (82, 2602990), (130, 1641886), (164, 1301495), (205, 1041196), (260, 820943), (410, 520598), (533, 400460), (820, 260299), (1066, 200230), (2132, 100115), (2665, 80092), (5330, 40046), (10660, 20023)]