20197780668

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{439}}^1\times {\mathrm{2657}}^1$

素因数の和:3156

約数の個数: 144

約数和(自身を含む): 56618802240

約数和(自身を除く): 36421021572

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 37, 39, 52, 74, 78, 111, 117, 148, 156, 222, 234, 333, 439, 444, 468, 481, 666, 878, 962, 1317, 1332, 1443, 1756, 1924, 2634, 2657, 2886, 3951, 4329, 5268, 5314, 5707, 5772, 7902, 7971, 8658, 10628, 11414, 15804, 15942, 16243, 17121, 17316, 22828, 23913, 31884, 32486, 34242, 34541, 47826, 48729, 51363, 64972, 68484, 69082, 95652, 97458, 98309, 102726, 103623, 138164, 146187, 194916, 196618, 205452, 207246, 211159, 292374, 294927, 310869, 393236, 414492, 422318, 584748, 589854, 621738, 633477, 844636, 884781, 1166423, 1179708, 1243476, 1266954, 1278017, 1769562, 1900431, 2332846, 2533908, 2556034, 3499269, 3539124, 3800862, 3834051, 4665692, 5112068, 6998538, 7601724, 7668102, 10497807, 11502153, 13997076, 15163499, 15336204, 20995614, 23004306, 30326998, 41991228, 43157651, 45490497, 46008612, 60653996, 86315302, 90980994, 129472953, 136471491, 172630604, 181961988, 258945906, 272942982, 388418859, 517891812, 545885964, 561049463, 776837718, 1122098926, 1553675436, 1683148389, 2244197852, 3366296778, 5049445167, 6732593556, 10098890334, 20197780668]

約数ペア:

[(1, 20197780668), (2, 10098890334), (3, 6732593556), (4, 5049445167), (6, 3366296778), (9, 2244197852), (12, 1683148389), (13, 1553675436), (18, 1122098926), (26, 776837718), (36, 561049463), (37, 545885964), (39, 517891812), (52, 388418859), (74, 272942982), (78, 258945906), (111, 181961988), (117, 172630604), (148, 136471491), (156, 129472953), (222, 90980994), (234, 86315302), (333, 60653996), (439, 46008612), (444, 45490497), (468, 43157651), (481, 41991228), (666, 30326998), (878, 23004306), (962, 20995614), (1317, 15336204), (1332, 15163499), (1443, 13997076), (1756, 11502153), (1924, 10497807), (2634, 7668102), (2657, 7601724), (2886, 6998538), (3951, 5112068), (4329, 4665692), (5268, 3834051), (5314, 3800862), (5707, 3539124), (5772, 3499269), (7902, 2556034), (7971, 2533908), (8658, 2332846), (10628, 1900431), (11414, 1769562), (15804, 1278017), (15942, 1266954), (16243, 1243476), (17121, 1179708), (17316, 1166423), (22828, 884781), (23913, 844636), (31884, 633477), (32486, 621738), (34242, 589854), (34541, 584748), (47826, 422318), (48729, 414492), (51363, 393236), (64972, 310869), (68484, 294927), (69082, 292374), (95652, 211159), (97458, 207246), (98309, 205452), (102726, 196618), (103623, 194916), (138164, 146187)]