28990320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{607}}^1$

素因数の和:822

約数の個数: 80

約数和(自身を含む): 90470400

約数和(自身を除く): 61480080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 199, 240, 398, 597, 607, 796, 995, 1194, 1214, 1592, 1821, 1990, 2388, 2428, 2985, 3035, 3184, 3642, 3980, 4776, 4856, 5970, 6070, 7284, 7960, 9105, 9552, 9712, 11940, 12140, 14568, 15920, 18210, 23880, 24280, 29136, 36420, 47760, 48560, 72840, 120793, 145680, 241586, 362379, 483172, 603965, 724758, 966344, 1207930, 1449516, 1811895, 1932688, 2415860, 2899032, 3623790, 4831720, 5798064, 7247580, 9663440, 14495160, 28990320]

約数ペア:

[(1, 28990320), (2, 14495160), (3, 9663440), (4, 7247580), (5, 5798064), (6, 4831720), (8, 3623790), (10, 2899032), (12, 2415860), (15, 1932688), (16, 1811895), (20, 1449516), (24, 1207930), (30, 966344), (40, 724758), (48, 603965), (60, 483172), (80, 362379), (120, 241586), (199, 145680), (240, 120793), (398, 72840), (597, 48560), (607, 47760), (796, 36420), (995, 29136), (1194, 24280), (1214, 23880), (1592, 18210), (1821, 15920), (1990, 14568), (2388, 12140), (2428, 11940), (2985, 9712), (3035, 9552), (3184, 9105), (3642, 7960), (3980, 7284), (4776, 6070), (4856, 5970)]