398744475

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:221

約数の個数: 96

約数和(自身を含む): 719953920

約数和(自身を除く): 321209445

約数列:

[1, 3, 5, 15, 25, 31, 41, 47, 75, 89, 93, 123, 141, 155, 205, 235, 267, 445, 465, 615, 705, 775, 1025, 1175, 1271, 1335, 1457, 1927, 2225, 2325, 2759, 3075, 3525, 3649, 3813, 4183, 4371, 5781, 6355, 6675, 7285, 8277, 9635, 10947, 12549, 13795, 18245, 19065, 20915, 21855, 28905, 31775, 36425, 41385, 48175, 54735, 59737, 62745, 68975, 91225, 95325, 104575, 109275, 113119, 129673, 144525, 171503, 179211, 206925, 273675, 298685, 313725, 339357, 389019, 514509, 565595, 648365, 857515, 896055, 1493425, 1696785, 1945095, 2572545, 2827975, 3241825, 4287575, 4480275, 5316593, 8483925, 9725475, 12862725, 15949779, 26582965, 79748895, 132914825, 398744475]

約数ペア:

[(1, 398744475), (3, 132914825), (5, 79748895), (15, 26582965), (25, 15949779), (31, 12862725), (41, 9725475), (47, 8483925), (75, 5316593), (89, 4480275), (93, 4287575), (123, 3241825), (141, 2827975), (155, 2572545), (205, 1945095), (235, 1696785), (267, 1493425), (445, 896055), (465, 857515), (615, 648365), (705, 565595), (775, 514509), (1025, 389019), (1175, 339357), (1271, 313725), (1335, 298685), (1457, 273675), (1927, 206925), (2225, 179211), (2325, 171503), (2759, 144525), (3075, 129673), (3525, 113119), (3649, 109275), (3813, 104575), (4183, 95325), (4371, 91225), (5781, 68975), (6355, 62745), (6675, 59737), (7285, 54735), (8277, 48175), (9635, 41385), (10947, 36425), (12549, 31775), (13795, 28905), (18245, 21855), (19065, 20915)]