257745120

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{4099}}^1$

素因数の和:4248

約数の個数: 96

約数和(自身を含む): 818294400

約数和(自身を除く): 560549280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 131, 160, 240, 262, 393, 480, 524, 655, 786, 1048, 1310, 1572, 1965, 2096, 2620, 3144, 3930, 4099, 4192, 5240, 6288, 7860, 8198, 10480, 12297, 12576, 15720, 16396, 20495, 20960, 24594, 31440, 32792, 40990, 49188, 61485, 62880, 65584, 81980, 98376, 122970, 131168, 163960, 196752, 245940, 327920, 393504, 491880, 536969, 655840, 983760, 1073938, 1610907, 1967520, 2147876, 2684845, 3221814, 4295752, 5369690, 6443628, 8054535, 8591504, 10739380, 12887256, 16109070, 17183008, 21478760, 25774512, 32218140, 42957520, 51549024, 64436280, 85915040, 128872560, 257745120]

約数ペア:

[(1, 257745120), (2, 128872560), (3, 85915040), (4, 64436280), (5, 51549024), (6, 42957520), (8, 32218140), (10, 25774512), (12, 21478760), (15, 17183008), (16, 16109070), (20, 12887256), (24, 10739380), (30, 8591504), (32, 8054535), (40, 6443628), (48, 5369690), (60, 4295752), (80, 3221814), (96, 2684845), (120, 2147876), (131, 1967520), (160, 1610907), (240, 1073938), (262, 983760), (393, 655840), (480, 536969), (524, 491880), (655, 393504), (786, 327920), (1048, 245940), (1310, 196752), (1572, 163960), (1965, 131168), (2096, 122970), (2620, 98376), (3144, 81980), (3930, 65584), (4099, 62880), (4192, 61485), (5240, 49188), (6288, 40990), (7860, 32792), (8198, 31440), (10480, 24594), (12297, 20960), (12576, 20495), (15720, 16396)]