138631220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{211}}^1$

素因数の和:278

約数の個数: 144

約数和(自身を含む): 379951488

約数和(自身を除く): 241320268

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 19, 20, 26, 28, 35, 38, 52, 65, 70, 76, 91, 95, 130, 133, 140, 182, 190, 211, 247, 260, 266, 361, 364, 380, 422, 455, 494, 532, 665, 722, 844, 910, 988, 1055, 1235, 1330, 1444, 1477, 1729, 1805, 1820, 2110, 2470, 2527, 2660, 2743, 2954, 3458, 3610, 4009, 4220, 4693, 4940, 5054, 5486, 5908, 6916, 7220, 7385, 8018, 8645, 9386, 10108, 10972, 12635, 13715, 14770, 16036, 17290, 18772, 19201, 20045, 23465, 25270, 27430, 28063, 29540, 32851, 34580, 38402, 40090, 46930, 50540, 52117, 54860, 56126, 65702, 76171, 76804, 80180, 93860, 96005, 104234, 112252, 131404, 140315, 152342, 164255, 192010, 208468, 260585, 280630, 304684, 328510, 364819, 380855, 384020, 521170, 533197, 561260, 657020, 729638, 761710, 990223, 1042340, 1066394, 1459276, 1523420, 1824095, 1980446, 2132788, 2665985, 3648190, 3960892, 4951115, 5331970, 6931561, 7296380, 9902230, 10663940, 13863122, 19804460, 27726244, 34657805, 69315610, 138631220]

約数ペア:

[(1, 138631220), (2, 69315610), (4, 34657805), (5, 27726244), (7, 19804460), (10, 13863122), (13, 10663940), (14, 9902230), (19, 7296380), (20, 6931561), (26, 5331970), (28, 4951115), (35, 3960892), (38, 3648190), (52, 2665985), (65, 2132788), (70, 1980446), (76, 1824095), (91, 1523420), (95, 1459276), (130, 1066394), (133, 1042340), (140, 990223), (182, 761710), (190, 729638), (211, 657020), (247, 561260), (260, 533197), (266, 521170), (361, 384020), (364, 380855), (380, 364819), (422, 328510), (455, 304684), (494, 280630), (532, 260585), (665, 208468), (722, 192010), (844, 164255), (910, 152342), (988, 140315), (1055, 131404), (1235, 112252), (1330, 104234), (1444, 96005), (1477, 93860), (1729, 80180), (1805, 76804), (1820, 76171), (2110, 65702), (2470, 56126), (2527, 54860), (2660, 52117), (2743, 50540), (2954, 46930), (3458, 40090), (3610, 38402), (4009, 34580), (4220, 32851), (4693, 29540), (4940, 28063), (5054, 27430), (5486, 25270), (5908, 23465), (6916, 20045), (7220, 19201), (7385, 18772), (8018, 17290), (8645, 16036), (9386, 14770), (10108, 13715), (10972, 12635)]