72038960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{653}}^1$

素因数の和:870

約数の個数: 80

約数和(自身を含む): 192684096

約数和(自身を除く): 120645136

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 197, 280, 394, 560, 653, 788, 985, 1306, 1379, 1576, 1970, 2612, 2758, 3152, 3265, 3940, 4571, 5224, 5516, 6530, 6895, 7880, 9142, 10448, 11032, 13060, 13790, 15760, 18284, 22064, 22855, 26120, 27580, 36568, 45710, 52240, 55160, 73136, 91420, 110320, 128641, 182840, 257282, 365680, 514564, 643205, 900487, 1029128, 1286410, 1800974, 2058256, 2572820, 3601948, 4502435, 5145640, 7203896, 9004870, 10291280, 14407792, 18009740, 36019480, 72038960]

約数ペア:

[(1, 72038960), (2, 36019480), (4, 18009740), (5, 14407792), (7, 10291280), (8, 9004870), (10, 7203896), (14, 5145640), (16, 4502435), (20, 3601948), (28, 2572820), (35, 2058256), (40, 1800974), (56, 1286410), (70, 1029128), (80, 900487), (112, 643205), (140, 514564), (197, 365680), (280, 257282), (394, 182840), (560, 128641), (653, 110320), (788, 91420), (985, 73136), (1306, 55160), (1379, 52240), (1576, 45710), (1970, 36568), (2612, 27580), (2758, 26120), (3152, 22855), (3265, 22064), (3940, 18284), (4571, 15760), (5224, 13790), (5516, 13060), (6530, 11032), (6895, 10448), (7880, 9142)]