642037578

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{127}}^1\times {\mathrm{197}}^1$

素因数の和:396

約数の個数: 128

約数和(自身を含む): 1634992128

約数和(自身を除く): 992954550

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 47, 78, 91, 94, 127, 141, 182, 197, 254, 273, 282, 329, 381, 394, 546, 591, 611, 658, 762, 889, 987, 1182, 1222, 1379, 1651, 1778, 1833, 1974, 2561, 2667, 2758, 3302, 3666, 4137, 4277, 4953, 5122, 5334, 5969, 7683, 8274, 8554, 9259, 9906, 11557, 11938, 12831, 15366, 17907, 17927, 18518, 23114, 25019, 25662, 27777, 34671, 35814, 35854, 41783, 50038, 53781, 55554, 64813, 69342, 75057, 77597, 83566, 107562, 120367, 125349, 129626, 150114, 155194, 175133, 194439, 232791, 240734, 250698, 325247, 350266, 361101, 388878, 465582, 525399, 543179, 650494, 722202, 842569, 975741, 1050798, 1086358, 1175893, 1629537, 1685138, 1951482, 2276729, 2351786, 2527707, 3259074, 3527679, 4553458, 5055414, 6830187, 7055358, 8231251, 13660374, 15286609, 16462502, 24693753, 30573218, 45859827, 49387506, 91719654, 107006263, 214012526, 321018789, 642037578]

約数ペア:

[(1, 642037578), (2, 321018789), (3, 214012526), (6, 107006263), (7, 91719654), (13, 49387506), (14, 45859827), (21, 30573218), (26, 24693753), (39, 16462502), (42, 15286609), (47, 13660374), (78, 8231251), (91, 7055358), (94, 6830187), (127, 5055414), (141, 4553458), (182, 3527679), (197, 3259074), (254, 2527707), (273, 2351786), (282, 2276729), (329, 1951482), (381, 1685138), (394, 1629537), (546, 1175893), (591, 1086358), (611, 1050798), (658, 975741), (762, 842569), (889, 722202), (987, 650494), (1182, 543179), (1222, 525399), (1379, 465582), (1651, 388878), (1778, 361101), (1833, 350266), (1974, 325247), (2561, 250698), (2667, 240734), (2758, 232791), (3302, 194439), (3666, 175133), (4137, 155194), (4277, 150114), (4953, 129626), (5122, 125349), (5334, 120367), (5969, 107562), (7683, 83566), (8274, 77597), (8554, 75057), (9259, 69342), (9906, 64813), (11557, 55554), (11938, 53781), (12831, 50038), (15366, 41783), (17907, 35854), (17927, 35814), (18518, 34671), (23114, 27777), (25019, 25662)]