20377011928

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{20749}}^1$

素因数の和:20865

約数の個数: 128

約数和(自身を含む): 50198400000

約数和(自身を除く): 29821388072

約数列:

[1, 2, 4, 7, 8, 13, 14, 19, 26, 28, 38, 52, 56, 71, 76, 91, 104, 133, 142, 152, 182, 247, 266, 284, 364, 494, 497, 532, 568, 728, 923, 988, 994, 1064, 1349, 1729, 1846, 1976, 1988, 2698, 3458, 3692, 3976, 5396, 6461, 6916, 7384, 9443, 10792, 12922, 13832, 17537, 18886, 20749, 25844, 35074, 37772, 41498, 51688, 70148, 75544, 82996, 122759, 140296, 145243, 165992, 245518, 269737, 290486, 394231, 491036, 539474, 580972, 788462, 982072, 1078948, 1161944, 1473179, 1576924, 1888159, 2157896, 2759617, 2946358, 3153848, 3776318, 5125003, 5519234, 5892716, 7552636, 10250006, 10312253, 11038468, 11785432, 15105272, 19151327, 20500012, 20624506, 22076936, 27990401, 35875021, 38302654, 41000024, 41249012, 55980802, 71750042, 76605308, 82498024, 111961604, 134059289, 143500084, 153210616, 195932807, 223923208, 268118578, 287000168, 363875213, 391865614, 536237156, 727750426, 783731228, 1072474312, 1455500852, 1567462456, 2547126491, 2911001704, 5094252982, 10188505964, 20377011928]

約数ペア:

[(1, 20377011928), (2, 10188505964), (4, 5094252982), (7, 2911001704), (8, 2547126491), (13, 1567462456), (14, 1455500852), (19, 1072474312), (26, 783731228), (28, 727750426), (38, 536237156), (52, 391865614), (56, 363875213), (71, 287000168), (76, 268118578), (91, 223923208), (104, 195932807), (133, 153210616), (142, 143500084), (152, 134059289), (182, 111961604), (247, 82498024), (266, 76605308), (284, 71750042), (364, 55980802), (494, 41249012), (497, 41000024), (532, 38302654), (568, 35875021), (728, 27990401), (923, 22076936), (988, 20624506), (994, 20500012), (1064, 19151327), (1349, 15105272), (1729, 11785432), (1846, 11038468), (1976, 10312253), (1988, 10250006), (2698, 7552636), (3458, 5892716), (3692, 5519234), (3976, 5125003), (5396, 3776318), (6461, 3153848), (6916, 2946358), (7384, 2759617), (9443, 2157896), (10792, 1888159), (12922, 1576924), (13832, 1473179), (17537, 1161944), (18886, 1078948), (20749, 982072), (25844, 788462), (35074, 580972), (37772, 539474), (41498, 491036), (51688, 394231), (70148, 290486), (75544, 269737), (82996, 245518), (122759, 165992), (140296, 145243)]