20921570800

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{1483}}^1\times {\mathrm{2713}}^1$

素因数の和:4227

約数の個数: 120

約数和(自身を含む): 54187007504

約数和(自身を除く): 33265436704

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 1483, 2600, 2713, 2966, 5200, 5426, 5932, 7415, 10852, 11864, 13565, 14830, 19279, 21704, 23728, 27130, 29660, 35269, 37075, 38558, 43408, 54260, 59320, 67825, 70538, 74150, 77116, 96395, 108520, 118640, 135650, 141076, 148300, 154232, 176345, 192790, 217040, 271300, 282152, 296600, 308464, 352690, 385580, 481975, 542600, 564304, 593200, 705380, 771160, 881725, 963950, 1085200, 1410760, 1542320, 1763450, 1927900, 2821520, 3526900, 3855800, 4023379, 7053800, 7711600, 8046758, 14107600, 16093516, 20116895, 32187032, 40233790, 52303927, 64374064, 80467580, 100584475, 104607854, 160935160, 201168950, 209215708, 261519635, 321870320, 402337900, 418431416, 523039270, 804675800, 836862832, 1046078540, 1307598175, 1609351600, 2092157080, 2615196350, 4184314160, 5230392700, 10460785400, 20921570800]

約数ペア:

[(1, 20921570800), (2, 10460785400), (4, 5230392700), (5, 4184314160), (8, 2615196350), (10, 2092157080), (13, 1609351600), (16, 1307598175), (20, 1046078540), (25, 836862832), (26, 804675800), (40, 523039270), (50, 418431416), (52, 402337900), (65, 321870320), (80, 261519635), (100, 209215708), (104, 201168950), (130, 160935160), (200, 104607854), (208, 100584475), (260, 80467580), (325, 64374064), (400, 52303927), (520, 40233790), (650, 32187032), (1040, 20116895), (1300, 16093516), (1483, 14107600), (2600, 8046758), (2713, 7711600), (2966, 7053800), (5200, 4023379), (5426, 3855800), (5932, 3526900), (7415, 2821520), (10852, 1927900), (11864, 1763450), (13565, 1542320), (14830, 1410760), (19279, 1085200), (21704, 963950), (23728, 881725), (27130, 771160), (29660, 705380), (35269, 593200), (37075, 564304), (38558, 542600), (43408, 481975), (54260, 385580), (59320, 352690), (67825, 308464), (70538, 296600), (74150, 282152), (77116, 271300), (96395, 217040), (108520, 192790), (118640, 176345), (135650, 154232), (141076, 148300)]