21034851880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{55117}}^1$

素因数の和:55211

約数の個数: 128

約数和(自身を含む): 57146342400

約数和(自身を除く): 36111490520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 47, 56, 58, 70, 94, 116, 140, 145, 188, 203, 232, 235, 280, 290, 329, 376, 406, 470, 580, 658, 812, 940, 1015, 1160, 1316, 1363, 1624, 1645, 1880, 2030, 2632, 2726, 3290, 4060, 5452, 6580, 6815, 8120, 9541, 10904, 13160, 13630, 19082, 27260, 38164, 47705, 54520, 55117, 76328, 95410, 110234, 190820, 220468, 275585, 381640, 385819, 440936, 551170, 771638, 1102340, 1543276, 1598393, 1929095, 2204680, 2590499, 3086552, 3196786, 3858190, 5180998, 6393572, 7716380, 7991965, 10361996, 11188751, 12787144, 12952495, 15432760, 15983930, 18133493, 20723992, 22377502, 25904990, 31967860, 36266986, 44755004, 51809980, 55943755, 63935720, 72533972, 75124471, 89510008, 90667465, 103619960, 111887510, 145067944, 150248942, 181334930, 223775020, 300497884, 362669860, 375622355, 447550040, 525871297, 600995768, 725339720, 751244710, 1051742594, 1502489420, 2103485188, 2629356485, 3004978840, 4206970376, 5258712970, 10517425940, 21034851880]

約数ペア:

[(1, 21034851880), (2, 10517425940), (4, 5258712970), (5, 4206970376), (7, 3004978840), (8, 2629356485), (10, 2103485188), (14, 1502489420), (20, 1051742594), (28, 751244710), (29, 725339720), (35, 600995768), (40, 525871297), (47, 447550040), (56, 375622355), (58, 362669860), (70, 300497884), (94, 223775020), (116, 181334930), (140, 150248942), (145, 145067944), (188, 111887510), (203, 103619960), (232, 90667465), (235, 89510008), (280, 75124471), (290, 72533972), (329, 63935720), (376, 55943755), (406, 51809980), (470, 44755004), (580, 36266986), (658, 31967860), (812, 25904990), (940, 22377502), (1015, 20723992), (1160, 18133493), (1316, 15983930), (1363, 15432760), (1624, 12952495), (1645, 12787144), (1880, 11188751), (2030, 10361996), (2632, 7991965), (2726, 7716380), (3290, 6393572), (4060, 5180998), (5452, 3858190), (6580, 3196786), (6815, 3086552), (8120, 2590499), (9541, 2204680), (10904, 1929095), (13160, 1598393), (13630, 1543276), (19082, 1102340), (27260, 771638), (38164, 551170), (47705, 440936), (54520, 385819), (55117, 381640), (76328, 275585), (95410, 220468), (110234, 190820)]