20213340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1$

素因数の和:204

約数の個数: 192

約数和(自身を含む): 72576000

約数和(自身を除く): 52362660

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 19, 20, 21, 28, 30, 34, 35, 38, 42, 51, 57, 60, 68, 70, 76, 84, 85, 95, 102, 105, 114, 119, 133, 140, 149, 170, 190, 204, 210, 228, 238, 255, 266, 285, 298, 323, 340, 357, 380, 399, 420, 447, 476, 510, 532, 570, 595, 596, 646, 665, 714, 745, 798, 894, 969, 1020, 1043, 1140, 1190, 1292, 1330, 1428, 1490, 1596, 1615, 1785, 1788, 1938, 1995, 2086, 2235, 2261, 2380, 2533, 2660, 2831, 2980, 3129, 3230, 3570, 3876, 3990, 4172, 4470, 4522, 4845, 5066, 5215, 5662, 6258, 6460, 6783, 7140, 7599, 7980, 8493, 8940, 9044, 9690, 10132, 10430, 11305, 11324, 12516, 12665, 13566, 14155, 15198, 15645, 16986, 17731, 19380, 19817, 20860, 22610, 25330, 27132, 28310, 30396, 31290, 33915, 33972, 35462, 37995, 39634, 42465, 45220, 48127, 50660, 53193, 56620, 59451, 62580, 67830, 70924, 75990, 79268, 84930, 88655, 96254, 99085, 106386, 118902, 135660, 144381, 151980, 169860, 177310, 192508, 198170, 212772, 237804, 240635, 265965, 288762, 297255, 336889, 354620, 396340, 481270, 531930, 577524, 594510, 673778, 721905, 962540, 1010667, 1063860, 1189020, 1347556, 1443810, 1684445, 2021334, 2887620, 3368890, 4042668, 5053335, 6737780, 10106670, 20213340]

約数ペア:

[(1, 20213340), (2, 10106670), (3, 6737780), (4, 5053335), (5, 4042668), (6, 3368890), (7, 2887620), (10, 2021334), (12, 1684445), (14, 1443810), (15, 1347556), (17, 1189020), (19, 1063860), (20, 1010667), (21, 962540), (28, 721905), (30, 673778), (34, 594510), (35, 577524), (38, 531930), (42, 481270), (51, 396340), (57, 354620), (60, 336889), (68, 297255), (70, 288762), (76, 265965), (84, 240635), (85, 237804), (95, 212772), (102, 198170), (105, 192508), (114, 177310), (119, 169860), (133, 151980), (140, 144381), (149, 135660), (170, 118902), (190, 106386), (204, 99085), (210, 96254), (228, 88655), (238, 84930), (255, 79268), (266, 75990), (285, 70924), (298, 67830), (323, 62580), (340, 59451), (357, 56620), (380, 53193), (399, 50660), (420, 48127), (447, 45220), (476, 42465), (510, 39634), (532, 37995), (570, 35462), (595, 33972), (596, 33915), (646, 31290), (665, 30396), (714, 28310), (745, 27132), (798, 25330), (894, 22610), (969, 20860), (1020, 19817), (1043, 19380), (1140, 17731), (1190, 16986), (1292, 15645), (1330, 15198), (1428, 14155), (1490, 13566), (1596, 12665), (1615, 12516), (1785, 11324), (1788, 11305), (1938, 10430), (1995, 10132), (2086, 9690), (2235, 9044), (2261, 8940), (2380, 8493), (2533, 7980), (2660, 7599), (2831, 7140), (2980, 6783), (3129, 6460), (3230, 6258), (3570, 5662), (3876, 5215), (3990, 5066), (4172, 4845), (4470, 4522)]