2000498980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1\times {\mathrm{541}}^1$

素因数の和:869

約数の個数: 96

約数和(自身を含む): 4567368960

約数和(自身を除く): 2566869980

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 74, 76, 95, 148, 185, 190, 263, 370, 380, 526, 541, 703, 740, 1052, 1082, 1315, 1406, 2164, 2630, 2705, 2812, 3515, 4997, 5260, 5410, 7030, 9731, 9994, 10279, 10820, 14060, 19462, 19988, 20017, 20558, 24985, 38924, 40034, 41116, 48655, 49970, 51395, 80068, 97310, 99940, 100085, 102790, 142283, 184889, 194620, 200170, 205580, 284566, 369778, 380323, 400340, 569132, 711415, 739556, 760646, 924445, 1422830, 1521292, 1848890, 1901615, 2703377, 2845660, 3697780, 3803230, 5264471, 5406754, 7606460, 10528942, 10813508, 13516885, 21057884, 26322355, 27033770, 52644710, 54067540, 100024949, 105289420, 200049898, 400099796, 500124745, 1000249490, 2000498980]

約数ペア:

[(1, 2000498980), (2, 1000249490), (4, 500124745), (5, 400099796), (10, 200049898), (19, 105289420), (20, 100024949), (37, 54067540), (38, 52644710), (74, 27033770), (76, 26322355), (95, 21057884), (148, 13516885), (185, 10813508), (190, 10528942), (263, 7606460), (370, 5406754), (380, 5264471), (526, 3803230), (541, 3697780), (703, 2845660), (740, 2703377), (1052, 1901615), (1082, 1848890), (1315, 1521292), (1406, 1422830), (2164, 924445), (2630, 760646), (2705, 739556), (2812, 711415), (3515, 569132), (4997, 400340), (5260, 380323), (5410, 369778), (7030, 284566), (9731, 205580), (9994, 200170), (10279, 194620), (10820, 184889), (14060, 142283), (19462, 102790), (19988, 100085), (20017, 99940), (20558, 97310), (24985, 80068), (38924, 51395), (40034, 49970), (41116, 48655)]