28697520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1097}}^1$

素因数の和:1222

約数の個数: 80

約数和(自身を含む): 89860320

約数和(自身を除く): 61162800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 109, 120, 218, 240, 327, 436, 545, 654, 872, 1090, 1097, 1308, 1635, 1744, 2180, 2194, 2616, 3270, 3291, 4360, 4388, 5232, 5485, 6540, 6582, 8720, 8776, 10970, 13080, 13164, 16455, 17552, 21940, 26160, 26328, 32910, 43880, 52656, 65820, 87760, 119573, 131640, 239146, 263280, 358719, 478292, 597865, 717438, 956584, 1195730, 1434876, 1793595, 1913168, 2391460, 2869752, 3587190, 4782920, 5739504, 7174380, 9565840, 14348760, 28697520]

約数ペア:

[(1, 28697520), (2, 14348760), (3, 9565840), (4, 7174380), (5, 5739504), (6, 4782920), (8, 3587190), (10, 2869752), (12, 2391460), (15, 1913168), (16, 1793595), (20, 1434876), (24, 1195730), (30, 956584), (40, 717438), (48, 597865), (60, 478292), (80, 358719), (109, 263280), (120, 239146), (218, 131640), (240, 119573), (327, 87760), (436, 65820), (545, 52656), (654, 43880), (872, 32910), (1090, 26328), (1097, 26160), (1308, 21940), (1635, 17552), (1744, 16455), (2180, 13164), (2194, 13080), (2616, 10970), (3270, 8776), (3291, 8720), (4360, 6582), (4388, 6540), (5232, 5485)]