19499480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{487}}^1$

素因数の和:529

約数の個数: 128

約数和(自身を含む): 59028480

約数和(自身を除く): 39529000

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 65, 70, 77, 88, 91, 104, 110, 130, 140, 143, 154, 182, 220, 260, 280, 286, 308, 364, 385, 440, 455, 487, 520, 572, 616, 715, 728, 770, 910, 974, 1001, 1144, 1430, 1540, 1820, 1948, 2002, 2435, 2860, 3080, 3409, 3640, 3896, 4004, 4870, 5005, 5357, 5720, 6331, 6818, 8008, 9740, 10010, 10714, 12662, 13636, 17045, 19480, 20020, 21428, 25324, 26785, 27272, 31655, 34090, 37499, 40040, 42856, 44317, 50648, 53570, 63310, 68180, 69641, 74998, 88634, 107140, 126620, 136360, 139282, 149996, 177268, 187495, 214280, 221585, 253240, 278564, 299992, 348205, 354536, 374990, 443170, 487487, 557128, 696410, 749980, 886340, 974974, 1392820, 1499960, 1772680, 1949948, 2437435, 2785640, 3899896, 4874870, 9749740, 19499480]

約数ペア:

[(1, 19499480), (2, 9749740), (4, 4874870), (5, 3899896), (7, 2785640), (8, 2437435), (10, 1949948), (11, 1772680), (13, 1499960), (14, 1392820), (20, 974974), (22, 886340), (26, 749980), (28, 696410), (35, 557128), (40, 487487), (44, 443170), (52, 374990), (55, 354536), (56, 348205), (65, 299992), (70, 278564), (77, 253240), (88, 221585), (91, 214280), (104, 187495), (110, 177268), (130, 149996), (140, 139282), (143, 136360), (154, 126620), (182, 107140), (220, 88634), (260, 74998), (280, 69641), (286, 68180), (308, 63310), (364, 53570), (385, 50648), (440, 44317), (455, 42856), (487, 40040), (520, 37499), (572, 34090), (616, 31655), (715, 27272), (728, 26785), (770, 25324), (910, 21428), (974, 20020), (1001, 19480), (1144, 17045), (1430, 13636), (1540, 12662), (1820, 10714), (1948, 10010), (2002, 9740), (2435, 8008), (2860, 6818), (3080, 6331), (3409, 5720), (3640, 5357), (3896, 5005), (4004, 4870)]