28321758

素因数分解:

$2^1\times 3^3\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:254

約数の個数: 64

約数和(自身を含む): 65318400

約数和(自身を除く): 36996642

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 71, 83, 89, 142, 166, 178, 213, 249, 267, 426, 498, 534, 639, 747, 801, 1278, 1494, 1602, 1917, 2241, 2403, 3834, 4482, 4806, 5893, 6319, 7387, 11786, 12638, 14774, 17679, 18957, 22161, 35358, 37914, 44322, 53037, 56871, 66483, 106074, 113742, 132966, 159111, 170613, 199449, 318222, 341226, 398898, 524477, 1048954, 1573431, 3146862, 4720293, 9440586, 14160879, 28321758]

約数ペア:

[(1, 28321758), (2, 14160879), (3, 9440586), (6, 4720293), (9, 3146862), (18, 1573431), (27, 1048954), (54, 524477), (71, 398898), (83, 341226), (89, 318222), (142, 199449), (166, 170613), (178, 159111), (213, 132966), (249, 113742), (267, 106074), (426, 66483), (498, 56871), (534, 53037), (639, 44322), (747, 37914), (801, 35358), (1278, 22161), (1494, 18957), (1602, 17679), (1917, 14774), (2241, 12638), (2403, 11786), (3834, 7387), (4482, 6319), (4806, 5893)]