19302140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{397}}^1$

素因数の和:447

約数の個数: 96

約数和(自身を含む): 50549184

約数和(自身を除く): 31247044

約数列:

[1, 2, 4, 5, 10, 11, 13, 17, 20, 22, 26, 34, 44, 52, 55, 65, 68, 85, 110, 130, 143, 170, 187, 220, 221, 260, 286, 340, 374, 397, 442, 572, 715, 748, 794, 884, 935, 1105, 1430, 1588, 1870, 1985, 2210, 2431, 2860, 3740, 3970, 4367, 4420, 4862, 5161, 6749, 7940, 8734, 9724, 10322, 12155, 13498, 17468, 20644, 21835, 24310, 25805, 26996, 33745, 43670, 48620, 51610, 56771, 67490, 74239, 87340, 87737, 103220, 113542, 134980, 148478, 175474, 227084, 283855, 296956, 350948, 371195, 438685, 567710, 742390, 877370, 965107, 1135420, 1484780, 1754740, 1930214, 3860428, 4825535, 9651070, 19302140]

約数ペア:

[(1, 19302140), (2, 9651070), (4, 4825535), (5, 3860428), (10, 1930214), (11, 1754740), (13, 1484780), (17, 1135420), (20, 965107), (22, 877370), (26, 742390), (34, 567710), (44, 438685), (52, 371195), (55, 350948), (65, 296956), (68, 283855), (85, 227084), (110, 175474), (130, 148478), (143, 134980), (170, 113542), (187, 103220), (220, 87737), (221, 87340), (260, 74239), (286, 67490), (340, 56771), (374, 51610), (397, 48620), (442, 43670), (572, 33745), (715, 26996), (748, 25805), (794, 24310), (884, 21835), (935, 20644), (1105, 17468), (1430, 13498), (1588, 12155), (1870, 10322), (1985, 9724), (2210, 8734), (2431, 7940), (2860, 6749), (3740, 5161), (3970, 4862), (4367, 4420)]