145728520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{163}}^1$

素因数の和:315

約数の個数: 128

約数和(自身を含む): 392970240

約数和(自身を除く): 247241720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 103, 124, 140, 155, 163, 206, 217, 248, 280, 310, 326, 412, 434, 515, 620, 652, 721, 815, 824, 868, 1030, 1085, 1141, 1240, 1304, 1442, 1630, 1736, 2060, 2170, 2282, 2884, 3193, 3260, 3605, 4120, 4340, 4564, 5053, 5705, 5768, 6386, 6520, 7210, 8680, 9128, 10106, 11410, 12772, 14420, 15965, 16789, 20212, 22351, 22820, 25265, 25544, 28840, 31930, 33578, 35371, 40424, 44702, 45640, 50530, 63860, 67156, 70742, 83945, 89404, 101060, 111755, 117523, 127720, 134312, 141484, 167890, 176855, 178808, 202120, 223510, 235046, 282968, 335780, 353710, 447020, 470092, 520459, 587615, 671560, 707420, 894040, 940184, 1040918, 1175230, 1414840, 2081836, 2350460, 2602295, 3643213, 4163672, 4700920, 5204590, 7286426, 10409180, 14572852, 18216065, 20818360, 29145704, 36432130, 72864260, 145728520]

約数ペア:

[(1, 145728520), (2, 72864260), (4, 36432130), (5, 29145704), (7, 20818360), (8, 18216065), (10, 14572852), (14, 10409180), (20, 7286426), (28, 5204590), (31, 4700920), (35, 4163672), (40, 3643213), (56, 2602295), (62, 2350460), (70, 2081836), (103, 1414840), (124, 1175230), (140, 1040918), (155, 940184), (163, 894040), (206, 707420), (217, 671560), (248, 587615), (280, 520459), (310, 470092), (326, 447020), (412, 353710), (434, 335780), (515, 282968), (620, 235046), (652, 223510), (721, 202120), (815, 178808), (824, 176855), (868, 167890), (1030, 141484), (1085, 134312), (1141, 127720), (1240, 117523), (1304, 111755), (1442, 101060), (1630, 89404), (1736, 83945), (2060, 70742), (2170, 67156), (2282, 63860), (2884, 50530), (3193, 45640), (3260, 44702), (3605, 40424), (4120, 35371), (4340, 33578), (4564, 31930), (5053, 28840), (5705, 25544), (5768, 25265), (6386, 22820), (6520, 22351), (7210, 20212), (8680, 16789), (9128, 15965), (10106, 14420), (11410, 12772)]