28696860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{1217}}^1$

素因数の和:1363

約数の個数: 72

約数和(自身を含む): 87783696

約数和(自身を除く): 59086836

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 131, 180, 262, 393, 524, 655, 786, 1179, 1217, 1310, 1572, 1965, 2358, 2434, 2620, 3651, 3930, 4716, 4868, 5895, 6085, 7302, 7860, 10953, 11790, 12170, 14604, 18255, 21906, 23580, 24340, 36510, 43812, 54765, 73020, 109530, 159427, 219060, 318854, 478281, 637708, 797135, 956562, 1434843, 1594270, 1913124, 2391405, 2869686, 3188540, 4782810, 5739372, 7174215, 9565620, 14348430, 28696860]

約数ペア:

[(1, 28696860), (2, 14348430), (3, 9565620), (4, 7174215), (5, 5739372), (6, 4782810), (9, 3188540), (10, 2869686), (12, 2391405), (15, 1913124), (18, 1594270), (20, 1434843), (30, 956562), (36, 797135), (45, 637708), (60, 478281), (90, 318854), (131, 219060), (180, 159427), (262, 109530), (393, 73020), (524, 54765), (655, 43812), (786, 36510), (1179, 24340), (1217, 23580), (1310, 21906), (1572, 18255), (1965, 14604), (2358, 12170), (2434, 11790), (2620, 10953), (3651, 7860), (3930, 7302), (4716, 6085), (4868, 5895)]