28782012

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{1579}}^1$

素因数の和:1631

約数の個数: 72

約数和(自身を含む): 80693760

約数和(自身を除く): 51911748

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 31, 42, 49, 62, 84, 93, 98, 124, 147, 186, 196, 217, 294, 372, 434, 588, 651, 868, 1302, 1519, 1579, 2604, 3038, 3158, 4557, 4737, 6076, 6316, 9114, 9474, 11053, 18228, 18948, 22106, 33159, 44212, 48949, 66318, 77371, 97898, 132636, 146847, 154742, 195796, 232113, 293694, 309484, 342643, 464226, 587388, 685286, 928452, 1027929, 1370572, 2055858, 2398501, 4111716, 4797002, 7195503, 9594004, 14391006, 28782012]

約数ペア:

[(1, 28782012), (2, 14391006), (3, 9594004), (4, 7195503), (6, 4797002), (7, 4111716), (12, 2398501), (14, 2055858), (21, 1370572), (28, 1027929), (31, 928452), (42, 685286), (49, 587388), (62, 464226), (84, 342643), (93, 309484), (98, 293694), (124, 232113), (147, 195796), (186, 154742), (196, 146847), (217, 132636), (294, 97898), (372, 77371), (434, 66318), (588, 48949), (651, 44212), (868, 33159), (1302, 22106), (1519, 18948), (1579, 18228), (2604, 11053), (3038, 9474), (3158, 9114), (4557, 6316), (4737, 6076)]