20717221572

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{179}}^1\times {\mathrm{1237}}^1$

素因数の和:1562

約数の個数: 144

約数和(自身を含む): 55481811840

約数和(自身を除く): 34764590268

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 113, 138, 179, 207, 226, 276, 339, 358, 414, 452, 537, 678, 716, 828, 1017, 1074, 1237, 1356, 1611, 2034, 2148, 2474, 2599, 3222, 3711, 4068, 4117, 4948, 5198, 6444, 7422, 7797, 8234, 10396, 11133, 12351, 14844, 15594, 16468, 20227, 22266, 23391, 24702, 28451, 31188, 37053, 40454, 44532, 46782, 49404, 56902, 60681, 74106, 80908, 85353, 93564, 113804, 121362, 139781, 148212, 170706, 182043, 221423, 242724, 256059, 279562, 341412, 364086, 419343, 442846, 465221, 512118, 559124, 664269, 728172, 838686, 885692, 930442, 1024236, 1258029, 1328538, 1395663, 1677372, 1860884, 1992807, 2516058, 2657076, 2791326, 3214963, 3985614, 4186989, 5032116, 5092729, 5582652, 6429926, 7971228, 8373978, 9644889, 10185458, 12859852, 15278187, 16747956, 19289778, 20370916, 25020799, 28934667, 30556374, 38579556, 45834561, 50041598, 57869334, 61112748, 75062397, 91669122, 100083196, 115738668, 150124794, 183338244, 225187191, 300249588, 450374382, 575478377, 900748764, 1150956754, 1726435131, 2301913508, 3452870262, 5179305393, 6905740524, 10358610786, 20717221572]

約数ペア:

[(1, 20717221572), (2, 10358610786), (3, 6905740524), (4, 5179305393), (6, 3452870262), (9, 2301913508), (12, 1726435131), (18, 1150956754), (23, 900748764), (36, 575478377), (46, 450374382), (69, 300249588), (92, 225187191), (113, 183338244), (138, 150124794), (179, 115738668), (207, 100083196), (226, 91669122), (276, 75062397), (339, 61112748), (358, 57869334), (414, 50041598), (452, 45834561), (537, 38579556), (678, 30556374), (716, 28934667), (828, 25020799), (1017, 20370916), (1074, 19289778), (1237, 16747956), (1356, 15278187), (1611, 12859852), (2034, 10185458), (2148, 9644889), (2474, 8373978), (2599, 7971228), (3222, 6429926), (3711, 5582652), (4068, 5092729), (4117, 5032116), (4948, 4186989), (5198, 3985614), (6444, 3214963), (7422, 2791326), (7797, 2657076), (8234, 2516058), (10396, 1992807), (11133, 1860884), (12351, 1677372), (14844, 1395663), (15594, 1328538), (16468, 1258029), (20227, 1024236), (22266, 930442), (23391, 885692), (24702, 838686), (28451, 728172), (31188, 664269), (37053, 559124), (40454, 512118), (44532, 465221), (46782, 442846), (49404, 419343), (56902, 364086), (60681, 341412), (74106, 279562), (80908, 256059), (85353, 242724), (93564, 221423), (113804, 182043), (121362, 170706), (139781, 148212)]