19729872

素因数分解:

$2^4\times 3^3\times {\mathrm{109}}^1\times {\mathrm{419}}^1$

素因数の和:545

約数の個数: 80

約数和(自身を含む): 57288000

約数和(自身を除く): 37558128

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 109, 144, 216, 218, 327, 419, 432, 436, 654, 838, 872, 981, 1257, 1308, 1676, 1744, 1962, 2514, 2616, 2943, 3352, 3771, 3924, 5028, 5232, 5886, 6704, 7542, 7848, 10056, 11313, 11772, 15084, 15696, 20112, 22626, 23544, 30168, 45252, 45671, 47088, 60336, 90504, 91342, 137013, 181008, 182684, 274026, 365368, 411039, 548052, 730736, 822078, 1096104, 1233117, 1644156, 2192208, 2466234, 3288312, 4932468, 6576624, 9864936, 19729872]

約数ペア:

[(1, 19729872), (2, 9864936), (3, 6576624), (4, 4932468), (6, 3288312), (8, 2466234), (9, 2192208), (12, 1644156), (16, 1233117), (18, 1096104), (24, 822078), (27, 730736), (36, 548052), (48, 411039), (54, 365368), (72, 274026), (108, 182684), (109, 181008), (144, 137013), (216, 91342), (218, 90504), (327, 60336), (419, 47088), (432, 45671), (436, 45252), (654, 30168), (838, 23544), (872, 22626), (981, 20112), (1257, 15696), (1308, 15084), (1676, 11772), (1744, 11313), (1962, 10056), (2514, 7848), (2616, 7542), (2943, 6704), (3352, 5886), (3771, 5232), (3924, 5028)]