19499220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{641}}^1$

素因数の和:682

約数の個数: 108

約数和(自身を含む): 64147356

約数和(自身を除く): 44648136

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 169, 180, 195, 234, 260, 338, 390, 468, 507, 585, 641, 676, 780, 845, 1014, 1170, 1282, 1521, 1690, 1923, 2028, 2340, 2535, 2564, 3042, 3205, 3380, 3846, 5070, 5769, 6084, 6410, 7605, 7692, 8333, 9615, 10140, 11538, 12820, 15210, 16666, 19230, 23076, 24999, 28845, 30420, 33332, 38460, 41665, 49998, 57690, 74997, 83330, 99996, 108329, 115380, 124995, 149994, 166660, 216658, 249990, 299988, 324987, 374985, 433316, 499980, 541645, 649974, 749970, 974961, 1083290, 1299948, 1499940, 1624935, 1949922, 2166580, 3249870, 3899844, 4874805, 6499740, 9749610, 19499220]

約数ペア:

[(1, 19499220), (2, 9749610), (3, 6499740), (4, 4874805), (5, 3899844), (6, 3249870), (9, 2166580), (10, 1949922), (12, 1624935), (13, 1499940), (15, 1299948), (18, 1083290), (20, 974961), (26, 749970), (30, 649974), (36, 541645), (39, 499980), (45, 433316), (52, 374985), (60, 324987), (65, 299988), (78, 249990), (90, 216658), (117, 166660), (130, 149994), (156, 124995), (169, 115380), (180, 108329), (195, 99996), (234, 83330), (260, 74997), (338, 57690), (390, 49998), (468, 41665), (507, 38460), (585, 33332), (641, 30420), (676, 28845), (780, 24999), (845, 23076), (1014, 19230), (1170, 16666), (1282, 15210), (1521, 12820), (1690, 11538), (1923, 10140), (2028, 9615), (2340, 8333), (2535, 7692), (2564, 7605), (3042, 6410), (3205, 6084), (3380, 5769), (3846, 5070)]