19402040

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{521}}^1$

素因数の和:565

約数の個数: 96

約数和(自身を含む): 53557200

約数和(自身を除く): 34155160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 49, 56, 70, 76, 95, 98, 133, 140, 152, 190, 196, 245, 266, 280, 380, 392, 490, 521, 532, 665, 760, 931, 980, 1042, 1064, 1330, 1862, 1960, 2084, 2605, 2660, 3647, 3724, 4168, 4655, 5210, 5320, 7294, 7448, 9310, 9899, 10420, 14588, 18235, 18620, 19798, 20840, 25529, 29176, 36470, 37240, 39596, 49495, 51058, 69293, 72940, 79192, 98990, 102116, 127645, 138586, 145880, 197980, 204232, 255290, 277172, 346465, 395960, 485051, 510580, 554344, 692930, 970102, 1021160, 1385860, 1940204, 2425255, 2771720, 3880408, 4850510, 9701020, 19402040]

約数ペア:

[(1, 19402040), (2, 9701020), (4, 4850510), (5, 3880408), (7, 2771720), (8, 2425255), (10, 1940204), (14, 1385860), (19, 1021160), (20, 970102), (28, 692930), (35, 554344), (38, 510580), (40, 485051), (49, 395960), (56, 346465), (70, 277172), (76, 255290), (95, 204232), (98, 197980), (133, 145880), (140, 138586), (152, 127645), (190, 102116), (196, 98990), (245, 79192), (266, 72940), (280, 69293), (380, 51058), (392, 49495), (490, 39596), (521, 37240), (532, 36470), (665, 29176), (760, 25529), (931, 20840), (980, 19798), (1042, 18620), (1064, 18235), (1330, 14588), (1862, 10420), (1960, 9899), (2084, 9310), (2605, 7448), (2660, 7294), (3647, 5320), (3724, 5210), (4168, 4655)]