19808352

素因数分解:

$2^5\times 3^2\times {\mathrm{109}}^1\times {\mathrm{631}}^1$

素因数の和:756

約数の個数: 72

約数和(自身を含む): 56936880

約数和(自身を除く): 37128528

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 109, 144, 218, 288, 327, 436, 631, 654, 872, 981, 1262, 1308, 1744, 1893, 1962, 2524, 2616, 3488, 3786, 3924, 5048, 5232, 5679, 7572, 7848, 10096, 10464, 11358, 15144, 15696, 20192, 22716, 30288, 31392, 45432, 60576, 68779, 90864, 137558, 181728, 206337, 275116, 412674, 550232, 619011, 825348, 1100464, 1238022, 1650696, 2200928, 2476044, 3301392, 4952088, 6602784, 9904176, 19808352]

約数ペア:

[(1, 19808352), (2, 9904176), (3, 6602784), (4, 4952088), (6, 3301392), (8, 2476044), (9, 2200928), (12, 1650696), (16, 1238022), (18, 1100464), (24, 825348), (32, 619011), (36, 550232), (48, 412674), (72, 275116), (96, 206337), (109, 181728), (144, 137558), (218, 90864), (288, 68779), (327, 60576), (436, 45432), (631, 31392), (654, 30288), (872, 22716), (981, 20192), (1262, 15696), (1308, 15144), (1744, 11358), (1893, 10464), (1962, 10096), (2524, 7848), (2616, 7572), (3488, 5679), (3786, 5232), (3924, 5048)]