19561960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1933}}^1$

素因数の和:1978

約数の個数: 64

約数和(自身を含む): 50129280

約数和(自身を除く): 30567320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 23, 40, 44, 46, 55, 88, 92, 110, 115, 184, 220, 230, 253, 440, 460, 506, 920, 1012, 1265, 1933, 2024, 2530, 3866, 5060, 7732, 9665, 10120, 15464, 19330, 21263, 38660, 42526, 44459, 77320, 85052, 88918, 106315, 170104, 177836, 212630, 222295, 355672, 425260, 444590, 489049, 850520, 889180, 978098, 1778360, 1956196, 2445245, 3912392, 4890490, 9780980, 19561960]

約数ペア:

[(1, 19561960), (2, 9780980), (4, 4890490), (5, 3912392), (8, 2445245), (10, 1956196), (11, 1778360), (20, 978098), (22, 889180), (23, 850520), (40, 489049), (44, 444590), (46, 425260), (55, 355672), (88, 222295), (92, 212630), (110, 177836), (115, 170104), (184, 106315), (220, 88918), (230, 85052), (253, 77320), (440, 44459), (460, 42526), (506, 38660), (920, 21263), (1012, 19330), (1265, 15464), (1933, 10120), (2024, 9665), (2530, 7732), (3866, 5060)]